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144 is the natural number following 143 and preceding 145. 144 is a dozen dozens, or one gross. It is the twelfth Fibonacci number, and the largest one to also be a square. It is a Harshad number.

144 is a number that is divisible by the value of its φ function, which returns 48 in this case. Also, there are 21 solutions to the equation φ(x) = 144, more than any integer below 144, making it a highly totient number.

144 is the 12th square numberIn mathematics, a square number sometimes also called a perfect square is a positive integer that can be written as the square of some other integer. So for example, 9 is a square number since it can be written as 3×3. By convention, the first square numb, following 121Integers 121 is the natural number following 120 and preceding 122. CardinalOne hundred [and] twenty-one Ordinal121st Factorization Roman numeralCXXI Binary1111001 Hexadecimal79 One hundred twenty-one is the sum of three consecutive primes (37 + 41 + 43). and preceding 169Integers 169 is the natural number following one hundred sixty-eight and preceding one hundred seventy. 169 Cardinal one hundred [and] sixty-nine Ordinal169th Factorization Roman numeralCLXIX Binary10101001 HexadecimalA9 One hundred sixty-nine is one of t.

, the smallest number whose fifth power is a sum of less than five (smaller) fifth powers. This solution was found in 19961996 was a leap year starting on Monday (see link for calendar), and was designated the International Year for the Eradication of Poverty''. Events January January 5 Hamas operative Yahya Ayyash is killed by an Israeli-planted booby-trapped cell phone Jan by L.J. Lander and T.R. Parkin , and disproved a conjecture by Euler.

144 is also:

• The measurement, in cubits, of the wall of New Jerusalem shown by the seventh angel ( Holy Bible, Revelations 21:17).
• The Intel 8086The 8086 is a 16- bit microprocessor chip designed by Intel in 1978, which gave rise to the x86 architecture. Shortly later the Intel 8088 was introduced with an external 8-bit bus, allowing the use of cheap chipsets. It was based on the design of the 808 instruction for no operation (NOP).

For the year AD 144, see 144Events Change of Patriarch of Constantinople from Patriarch Polycarpus II to Patriarch Athendodorus Change of era name from Hanan (3rd year) to Jiankang era of the Chinese Han Dynasty Change of emperor from Han Shundi to Han Chongdi of the Chinese Han Dyn.