231253155 has 96 divisors (see below), whose sum is σ = 487019520. Its totient is φ = 99221760.

The previous prime is 231253147. The next prime is 231253181. The reversal of 231253155 is 551352132.

It is a happy number.

It is not a de Polignac number, because 231253155 - 2³ = 231253147 is a prime.

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 95 ways as a sum of consecutive naturals, for example, 427185 + ... + 427725.

It is an arithmetic number, because the mean of its divisors is an integer number (5073120).

Almost surely, 2^231253155 is an apocalyptic number.

231253155 is an abundant number, since it is smaller than the sum of its proper divisors (255766365).

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

231253155 is a wasteful number, since it uses less digits than its factorization.

231253155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641 (or 638 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 231253155 is about 15207.0100611527. The cubic root of 231253155 is about 613.8033044933.

The spelling of 231253155 in words is "two hundred thirty-one million, two hundred fifty-three thousand, one hundred fifty-five".