231503964 has 24 divisors (see below), whose sum is σ = 549333120. Its totient is φ = 75859824.

The previous prime is 231503963. The next prime is 231503969. The reversal of 231503964 is 469305132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231503963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162784 + ... + 164199.

It is an arithmetic number, because the mean of its divisors is an integer number (22888880).

Almost surely, 2^231503964 is an apocalyptic number.

It is an amenable number.

231503964 is an abundant number, since it is smaller than the sum of its proper divisors (317829156).

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

231503964 is a wasteful number, since it uses less digits than its factorization.

231503964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327049 (or 327047 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 231503964 is about 15215.2543192679. The cubic root of 231503964 is about 614.0251274434.

The spelling of 231503964 in words is "two hundred thirty-one million, five hundred three thousand, nine hundred sixty-four".