231961364 has 6 divisors (see below), whose sum is σ = 405932394. Its totient is φ = 115980680.

The previous prime is 231961351. The next prime is 231961381. The reversal of 231961364 is 463169132.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 231952900 + 8464 = 15230^2 + 92^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28995167 + ... + 28995174.

It is an arithmetic number, because the mean of its divisors is an integer number (67655399).

Almost surely, 2^231961364 is an apocalyptic number.

It is an amenable number.

231961364 is a deficient number, since it is larger than the sum of its proper divisors (173971030).

231961364 is a wasteful number, since it uses less digits than its factorization.

231961364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57990345 (or 57990343 counting only the distinct ones).

The product of its digits is 23328, while the sum is 35.

The square root of 231961364 is about 15230.2778700850. The cubic root of 231961364 is about 614.4292534639.

The spelling of 231961364 in words is "two hundred thirty-one million, nine hundred sixty-one thousand, three hundred sixty-four".