231045504 has 64 divisors (see below), whose sum is σ = 649833840. Its totient is φ = 72482816.

The previous prime is 231045481. The next prime is 231045517. The reversal of 231045504 is 405540132.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×231045504² = 106764049837228032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11169 + ... + 24224.

Almost surely, 2^231045504 is an apocalyptic number.

231045504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

231045504 is an abundant number, since it is smaller than the sum of its proper divisors (418788336).

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

231045504 is a wasteful number, since it uses less digits than its factorization.

231045504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35427 (or 35415 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 231045504 is about 15200.1810515533. The cubic root of 231045504 is about 613.6195303685.

Adding to 231045504 its reverse (405540132), we get a palindrome (636585636).

The spelling of 231045504 in words is "two hundred thirty-one million, forty-five thousand, five hundred four".