231325504 has 14 divisors (see below), whose sum is σ = 459036674. Its totient is φ = 115662720.

The previous prime is 231325453. The next prime is 231325529. The reversal of 231325504 is 405523132.

It can be written as a sum of positive squares in only one way, i.e., 229583104 + 1742400 = 15152^2 + 1320^2 .

It is a super-2 number, since 2×231325504² = 107022977601708032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1807167 + ... + 1807294.

Almost surely, 2^231325504 is an apocalyptic number.

It is an amenable number.

231325504 is a deficient number, since it is larger than the sum of its proper divisors (227711170).

231325504 is an equidigital number, since it uses as much as digits as its factorization.

231325504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3614473 (or 3614463 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 231325504 is about 15209.3886793651. The cubic root of 231325504 is about 613.8673085569.

Adding to 231325504 its reverse (405523132), we get a palindrome (636848636).

The spelling of 231325504 in words is "two hundred thirty-one million, three hundred twenty-five thousand, five hundred four".