57142137 has 16 divisors (see below), whose sum is σ = 83178368. Its totient is φ = 34680960.

The previous prime is 57142133. The next prime is 57142147. The reversal of 57142137 is 73124175.

It is not a de Polignac number, because 57142137 - 2² = 57142133 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57142133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7189 + ... + 12882.

It is an arithmetic number, because the mean of its divisors is an integer number (5198648).

Almost surely, 2^57142137 is an apocalyptic number.

It is an amenable number.

57142137 is a deficient number, since it is larger than the sum of its proper divisors (26036231).

57142137 is a wasteful number, since it uses less digits than its factorization.

57142137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20160.

The product of its digits is 5880, while the sum is 30.

The square root of 57142137 is about 7559.2418270618. The cubic root of 57142137 is about 385.1697390634.

The spelling of 57142137 in words is "fifty-seven million, one hundred forty-two thousand, one hundred thirty-seven".