231057365 has 24 divisors (see below), whose sum is σ = 348311040. Its totient is φ = 144033120.

The previous prime is 231057329. The next prime is 231057367. The reversal of 231057365 is 563750132.

It is not a de Polignac number, because 231057365 - 2⁶ = 231057301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231057367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23045 + ... + 31514.

It is an arithmetic number, because the mean of its divisors is an integer number (14512960).

Almost surely, 2^231057365 is an apocalyptic number.

It is an amenable number.

231057365 is a deficient number, since it is larger than the sum of its proper divisors (117253675).

231057365 is a wasteful number, since it uses less digits than its factorization.

231057365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54593 (or 54582 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 231057365 is about 15200.5712063725. The cubic root of 231057365 is about 613.6300304887.

The spelling of 231057365 in words is "two hundred thirty-one million, fifty-seven thousand, three hundred sixty-five".