252323144 has 16 divisors (see below), whose sum is σ = 475072620. Its totient is φ = 125637120.

The previous prime is 252323131. The next prime is 252323189. The reversal of 252323144 is 441323252.

It can be written as a sum of positive squares in 2 ways, for example, as 241180900 + 11142244 = 15530^2 + 3338^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63509 + ... + 67364.

Almost surely, 2^252323144 is an apocalyptic number.

It is an amenable number.

252323144 is a deficient number, since it is larger than the sum of its proper divisors (222749476).

252323144 is a wasteful number, since it uses less digits than its factorization.

252323144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131120 (or 131116 counting only the distinct ones).

The product of its digits is 5760, while the sum is 26.

The square root of 252323144 is about 15884.6826849012. The cubic root of 252323144 is about 631.9058303851.

Adding to 252323144 its reverse (441323252), we get a palindrome (693646396).

The spelling of 252323144 in words is "two hundred fifty-two million, three hundred twenty-three thousand, one hundred forty-four".