• Sorting the digits of 2144 in ascending order we obtain a prime of 39 digits.
• 144 can be written using four 4's:
The square root of 144 is 12.
It is the 12-th Fibonacci number F12.
It is a Jordan-Polya number, since it can be written as 4! ⋅ 3!.
144 is nontrivially palindromic in base 11 and base 15.
144 is an esthetic number in base 11, because in such base its adjacent digits differ by 1.
It is a hungry number.
It is a Duffinian number.
144 is an undulating number in base 11.
144 is a nontrivial repdigit in base 15.
It is a plaindrome in base 10 and base 15.
It is a nialpdrome in base 4, base 6, base 8, base 12, base 13, base 14, base 15 and base 16.
It is a zygodrome in base 15.
It is a panconsummate number.
144 is the 12-th square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 144
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
144 is a wasteful number, since it uses less digits than its factorization.
144 is an evil number, because the sum of its binary digits is even.
The cubic root of 144 is about 5.2414827884.
Subtracting from 144 its product of digits (16), we obtain a 7-th power (128 = 27).
Multiplying 144 by its product of digits (16), we get a square (2304 = 482).
Adding to 144 its reverse (441), we get a palindrome (585).
Multiplying 144 by its reverse (441), we get a square (63504 = 2522).