231085458 has 24 divisors (see below), whose sum is σ = 501662928. Its totient is φ = 76878072.

The previous prime is 231085457. The next prime is 231085469. The reversal of 231085458 is 854580132.

It is a happy number.

231085458 is a `hidden beast` number, since 2 + 3 + 108 + 545 + 8 = 666.

231085458 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (231085453) 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 11 ways as a sum of consecutive naturals, for example, 2860 + ... + 21687.

It is an arithmetic number, because the mean of its divisors is an integer number (20902622).

Almost surely, 2^231085458 is an apocalyptic number.

231085458 is an abundant number, since it is smaller than the sum of its proper divisors (270577470).

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

231085458 is a wasteful number, since it uses less digits than its factorization.

231085458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25078 (or 25075 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 231085458 is about 15201.4952554017. The cubic root of 231085458 is about 613.6548987862.

The spelling of 231085458 in words is "two hundred thirty-one million, eighty-five thousand, four hundred fifty-eight".