57136147 has 4 divisors (see below), whose sum is σ = 57157576. Its totient is φ = 57114720.

The previous prime is 57136139. The next prime is 57136153. The reversal of 57136147 is 74163175.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57136147 - 2³ = 57136139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57136447) 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, 6033 + ... + 12274.

It is an arithmetic number, because the mean of its divisors is an integer number (14289394).

Almost surely, 2^57136147 is an apocalyptic number.

57136147 is a deficient number, since it is larger than the sum of its proper divisors (21429).

57136147 is a wasteful number, since it uses less digits than its factorization.

57136147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21428.

The product of its digits is 17640, while the sum is 34.

The square root of 57136147 is about 7558.8456129227. The cubic root of 57136147 is about 385.1562799508.

The spelling of 57136147 in words is "fifty-seven million, one hundred thirty-six thousand, one hundred forty-seven".