57141731 has 2 divisors, whose sum is σ = 57141732. Its totient is φ = 57141730.

The previous prime is 57141691. The next prime is 57141737. The reversal of 57141731 is 13714175.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57141731 is a prime.

It is a super-2 number, since 2×57141731² = 6530354843352722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 57141694 and 57141703.

It is not a weakly prime, because it can be changed into another prime (57141737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28570865 + 28570866.

It is an arithmetic number, because the mean of its divisors is an integer number (28570866).

Almost surely, 2^57141731 is an apocalyptic number.

57141731 is a deficient number, since it is larger than the sum of its proper divisors (1).

57141731 is an equidigital number, since it uses as much as digits as its factorization.

57141731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2940, while the sum is 29.

The square root of 57141731 is about 7559.2149724690. The cubic root of 57141731 is about 385.1688268394.

The spelling of 57141731 in words is "fifty-seven million, one hundred forty-one thousand, seven hundred thirty-one".