1157370531 has 4 divisors (see below), whose sum is σ = 1543160712. Its totient is φ = 771580352.

The previous prime is 1157370493. The next prime is 1157370547. The reversal of 1157370531 is 1350737511.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1157370531 is a prime.

It is a super-2 number, since 2×1157370531² = 2679013092054443922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1157370492 and 1157370501.

It is not an unprimeable number, because it can be changed into a prime (1157370551) 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, 192895086 + ... + 192895091.

It is an arithmetic number, because the mean of its divisors is an integer number (385790178).

Almost surely, 2^1157370531 is an apocalyptic number.

1157370531 is a deficient number, since it is larger than the sum of its proper divisors (385790181).

1157370531 is an equidigital number, since it uses as much as digits as its factorization.

1157370531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385790180.

The product of its (nonzero) digits is 11025, while the sum is 33.

The square root of 1157370531 is about 34020.1488973814. The cubic root of 1157370531 is about 1049.9230574004.

The spelling of 1157370531 in words is "one billion, one hundred fifty-seven million, three hundred seventy thousand, five hundred thirty-one".