231548164 has 6 divisors (see below), whose sum is σ = 405209294. Its totient is φ = 115774080.

The previous prime is 231548147. The next prime is 231548167. The reversal of 231548164 is 461845132.

231548164 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 218803264 + 12744900 = 14792^2 + 3570^2 .

It is a super-2 number, since 2×231548164² = 107229104503541792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231548167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28943517 + ... + 28943524.

Almost surely, 2^231548164 is an apocalyptic number.

It is an amenable number.

231548164 is a deficient number, since it is larger than the sum of its proper divisors (173661130).

231548164 is a wasteful number, since it uses less digits than its factorization.

231548164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57887045 (or 57887043 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 231548164 is about 15216.7067396333. The cubic root of 231548164 is about 614.0642026326.

The spelling of 231548164 in words is "two hundred thirty-one million, five hundred forty-eight thousand, one hundred sixty-four".