57142337 has 4 divisors (see below), whose sum is σ = 65305536. Its totient is φ = 48979140.

The previous prime is 57142303. The next prime is 57142339. The reversal of 57142337 is 73324175.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 57142337 - 2⁸ = 57142081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57142339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4081589 + ... + 4081602.

It is an arithmetic number, because the mean of its divisors is an integer number (16326384).

Almost surely, 2^57142337 is an apocalyptic number.

It is an amenable number.

57142337 is a deficient number, since it is larger than the sum of its proper divisors (8163199).

57142337 is an equidigital number, since it uses as much as digits as its factorization.

57142337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8163198.

The product of its digits is 17640, while the sum is 32.

The square root of 57142337 is about 7559.2550558901. The cubic root of 57142337 is about 385.1701884332.

The spelling of 57142337 in words is "fifty-seven million, one hundred forty-two thousand, three hundred thirty-seven".