231831486 has 24 divisors (see below), whose sum is σ = 506141064. Its totient is φ = 76686480.

The previous prime is 231831449. The next prime is 231831493. The reversal of 231831486 is 684138132.

It is a self number, because there is not a number n which added to its sum of digits gives 231831486.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46801 + ... + 51516.

It is an arithmetic number, because the mean of its divisors is an integer number (21089211).

Almost surely, 2^231831486 is an apocalyptic number.

231831486 is an abundant number, since it is smaller than the sum of its proper divisors (274309578).

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

231831486 is a wasteful number, since it uses less digits than its factorization.

231831486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98456 (or 98453 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 231831486 is about 15226.0134638059. The cubic root of 231831486 is about 614.3145565741.

The spelling of 231831486 in words is "two hundred thirty-one million, eight hundred thirty-one thousand, four hundred eighty-six".