231995316 has 48 divisors (see below), whose sum is σ = 629153280. Its totient is φ = 65159520.

The previous prime is 231995303. The next prime is 231995327. The reversal of 231995316 is 613599132.

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 15 ways as a sum of consecutive naturals, for example, 18450 + ... + 28361.

It is an arithmetic number, because the mean of its divisors is an integer number (13107360).

Almost surely, 2^231995316 is an apocalyptic number.

It is an amenable number.

231995316 is an abundant number, since it is smaller than the sum of its proper divisors (397157964).

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

231995316 is a wasteful number, since it uses less digits than its factorization.

231995316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46884 (or 46882 counting only the distinct ones).

The product of its digits is 43740, while the sum is 39.

The square root of 231995316 is about 15231.3924511188. The cubic root of 231995316 is about 614.4592298415.

The spelling of 231995316 in words is "two hundred thirty-one million, nine hundred ninety-five thousand, three hundred sixteen".