231085253 has 16 divisors (see below), whose sum is σ = 282024960. Its totient is φ = 185068800.

The previous prime is 231085243. The next prime is 231085271. The reversal of 231085253 is 352580132.

It is not a de Polignac number, because 231085253 - 2⁴ = 231085237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231085243) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 12068 + ... + 24653.

It is an arithmetic number, because the mean of its divisors is an integer number (17626560).

Almost surely, 2^231085253 is an apocalyptic number.

It is an amenable number.

231085253 is a deficient number, since it is larger than the sum of its proper divisors (50939707).

231085253 is a wasteful number, since it uses less digits than its factorization.

231085253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36788.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 231085253 is about 15201.4885126424. The cubic root of 231085253 is about 613.6547173248.

The spelling of 231085253 in words is "two hundred thirty-one million, eighty-five thousand, two hundred fifty-three".