57132139 has 2 divisors, whose sum is σ = 57132140. Its totient is φ = 57132138.

The previous prime is 57132133. The next prime is 57132149. The reversal of 57132139 is 93123175.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57132139 - 2⁷ = 57132011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57132139.

It is not a weakly prime, because it can be changed into another prime (57132133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28566069 + 28566070.

It is an arithmetic number, because the mean of its divisors is an integer number (28566070).

Almost surely, 2^57132139 is an apocalyptic number.

57132139 is a deficient number, since it is larger than the sum of its proper divisors (1).

57132139 is an equidigital number, since it uses as much as digits as its factorization.

57132139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5670, while the sum is 31.

The square root of 57132139 is about 7558.5804884251. The cubic root of 57132139 is about 385.1472737288.

The spelling of 57132139 in words is "fifty-seven million, one hundred thirty-two thousand, one hundred thirty-nine".