231715456 has 32 divisors (see below), whose sum is σ = 527568480. Its totient is φ = 99306240.

The previous prime is 231715447. The next prime is 231715487. The reversal of 231715456 is 654517132.

231715456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128410 + ... + 130201.

It is an arithmetic number, because the mean of its divisors is an integer number (16486515).

Almost surely, 2^231715456 is an apocalyptic number.

It is an amenable number.

231715456 is an abundant number, since it is smaller than the sum of its proper divisors (295853024).

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

231715456 is an equidigital number, since it uses as much as digits as its factorization.

231715456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258632 (or 258620 counting only the distinct ones).

The product of its digits is 25200, while the sum is 34.

The square root of 231715456 is about 15222.2027315366. The cubic root of 231715456 is about 614.2120527913.

The spelling of 231715456 in words is "two hundred thirty-one million, seven hundred fifteen thousand, four hundred fifty-six".