57231371 has 2 divisors, whose sum is σ = 57231372. Its totient is φ = 57231370.

The previous prime is 57231353. The next prime is 57231379. The reversal of 57231371 is 17313275.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57231371 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57231379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28615685 + 28615686.

It is an arithmetic number, because the mean of its divisors is an integer number (28615686).

Almost surely, 2^57231371 is an apocalyptic number.

57231371 is a deficient number, since it is larger than the sum of its proper divisors (1).

57231371 is an equidigital number, since it uses as much as digits as its factorization.

57231371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4410, while the sum is 29.

The square root of 57231371 is about 7565.1418360795. The cubic root of 57231371 is about 385.3701303612.

The spelling of 57231371 in words is "fifty-seven million, two hundred thirty-one thousand, three hundred seventy-one".