957155231 has 4 divisors (see below), whose sum is σ = 969271200. Its totient is φ = 945039264.

The previous prime is 957155137. The next prime is 957155263. The reversal of 957155231 is 132551759.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 957155231 - 2¹⁰ = 957154207 is a prime.

It is a super-2 number, since 2×957155231² = 1832292272461326722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (957151231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6057866 + ... + 6058023.

It is an arithmetic number, because the mean of its divisors is an integer number (242317800).

Almost surely, 2^957155231 is an apocalyptic number.

957155231 is a deficient number, since it is larger than the sum of its proper divisors (12115969).

957155231 is a wasteful number, since it uses less digits than its factorization.

957155231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12115968.

The product of its digits is 47250, while the sum is 38.

The square root of 957155231 is about 30937.9254475797. The cubic root of 957155231 is about 985.5094484729.

The spelling of 957155231 in words is "nine hundred fifty-seven million, one hundred fifty-five thousand, two hundred thirty-one".