144521144 has 64 divisors (see below), whose sum is σ = 302572800. Its totient is φ = 64399104.

The previous prime is 144521129. The next prime is 144521147. The reversal of 144521144 is 441125441.

It is a super-2 number, since 2×144521144² = 41772722126137472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144521147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233924 + ... + 234540.

It is an arithmetic number, because the mean of its divisors is an integer number (4727700).

Almost surely, 2^144521144 is an apocalyptic number.

It is an amenable number.

144521144 is an abundant number, since it is smaller than the sum of its proper divisors (158051656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144521144 is a wasteful number, since it uses less digits than its factorization.

144521144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732 (or 728 counting only the distinct ones).

The product of its digits is 2560, while the sum is 26.

The square root of 144521144 is about 12021.6947224591. The cubic root of 144521144 is about 524.7798248335.

Adding to 144521144 its reverse (441125441), we get a palindrome (585646585).

The spelling of 144521144 in words is "one hundred forty-four million, five hundred twenty-one thousand, one hundred forty-four".