231517368 has 48 divisors (see below), whose sum is σ = 635871600. Its totient is φ = 76083840.

The previous prime is 231517367. The next prime is 231517453. The reversal of 231517368 is 863715132.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231517367) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17533 + ... + 27756.

It is an arithmetic number, because the mean of its divisors is an integer number (13247325).

Almost surely, 2^231517368 is an apocalyptic number.

It is an amenable number.

231517368 is an abundant number, since it is smaller than the sum of its proper divisors (404354232).

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

231517368 is a wasteful number, since it uses less digits than its factorization.

231517368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45372 (or 45365 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 231517368 is about 15215.6947918917. The cubic root of 231517368 is about 614.0369778294.

It can be divided in two parts, 2315 and 17368, that added together give a 9-th power (19683 = 3⁹).

The spelling of 231517368 in words is "two hundred thirty-one million, five hundred seventeen thousand, three hundred sixty-eight".