57645090131 has 2 divisors, whose sum is σ = 57645090132. Its totient is φ = 57645090130.

The previous prime is 57645090091. The next prime is 57645090149. The reversal of 57645090131 is 13109054675.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57645090131 is a prime.

It is a super-2 number, since 2×57645090131² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57645090331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28822545065 + 28822545066.

It is an arithmetic number, because the mean of its divisors is an integer number (28822545066).

Almost surely, 2^57645090131 is an apocalyptic number.

57645090131 is a deficient number, since it is larger than the sum of its proper divisors (1).

57645090131 is an equidigital number, since it uses as much as digits as its factorization.

57645090131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 41.

The spelling of 57645090131 in words is "fifty-seven billion, six hundred forty-five million, ninety thousand, one hundred thirty-one".