231153258 has 64 divisors (see below), whose sum is σ = 550229760. Its totient is φ = 63340032.

The previous prime is 231153239. The next prime is 231153269. The reversal of 231153258 is 852351132.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210166 + ... + 211262.

It is an arithmetic number, because the mean of its divisors is an integer number (8597340).

Almost surely, 2^231153258 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231153258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275114880).

231153258 is an abundant number, since it is smaller than the sum of its proper divisors (319076502).

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

231153258 is a wasteful number, since it uses less digits than its factorization.

231153258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311.

The product of its digits is 7200, while the sum is 30.

The square root of 231153258 is about 15203.7251356370. The cubic root of 231153258 is about 613.7149079478.

The spelling of 231153258 in words is "two hundred thirty-one million, one hundred fifty-three thousand, two hundred fifty-eight".