57140531 has 8 divisors (see below), whose sum is σ = 66198624. Its totient is φ = 48306240.

The previous prime is 57140521. The next prime is 57140539. The reversal of 57140531 is 13504175.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57140531 is a prime.

It is a super-2 number, since 2×57140531² = 6530080565923922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57140531.

It is not an unprimeable number, because it can be changed into a prime (57140539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55400 + ... + 56421.

It is an arithmetic number, because the mean of its divisors is an integer number (8274828).

Almost surely, 2^57140531 is an apocalyptic number.

57140531 is a deficient number, since it is larger than the sum of its proper divisors (9058093).

57140531 is a wasteful number, since it uses less digits than its factorization.

57140531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111901.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 57140531 is about 7559.1355987308. The cubic root of 57140531 is about 385.1661305856.

The spelling of 57140531 in words is "fifty-seven million, one hundred forty thousand, five hundred thirty-one".