231086190 has 32 divisors (see below), whose sum is σ = 557045280. Its totient is φ = 61352064.

The previous prime is 231086179. The next prime is 231086231. The reversal of 231086190 is 91680132.

231086190 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×231086190² = 106801654417432200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9949 + ... + 23688.

It is an arithmetic number, because the mean of its divisors is an integer number (17407665).

Almost surely, 2^231086190 is an apocalyptic number.

231086190 is an abundant number, since it is smaller than the sum of its proper divisors (325959090).

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

231086190 is a wasteful number, since it uses less digits than its factorization.

231086190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33876.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 231086190 is about 15201.5193319615. The cubic root of 231086190 is about 613.6555467354.

The spelling of 231086190 in words is "two hundred thirty-one million, eighty-six thousand, one hundred ninety".