1331352957 has 48 divisors (see below), whose sum is σ = 1991195136. Its totient is φ = 790548000.

The previous prime is 1331352941. The next prime is 1331352983. The reversal of 1331352957 is 7592531331.

It is not a de Polignac number, because 1331352957 - 2⁴ = 1331352941 is a prime.

It is a super-2 number, since 2×1331352957² = 3545001392225287698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331352917) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5864878 + ... + 5865104.

It is an arithmetic number, because the mean of its divisors is an integer number (41483232).

Almost surely, 2^1331352957 is an apocalyptic number.

It is an amenable number.

1331352957 is a deficient number, since it is larger than the sum of its proper divisors (659842179).

1331352957 is a wasteful number, since it uses less digits than its factorization.

1331352957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510 (or 499 counting only the distinct ones).

The product of its digits is 85050, while the sum is 39.

The square root of 1331352957 is about 36487.7096705178. The cubic root of 1331352957 is about 1100.0972247398.

The spelling of 1331352957 in words is "one billion, three hundred thirty-one million, three hundred fifty-two thousand, nine hundred fifty-seven".