57144913 has 8 divisors (see below), whose sum is σ = 68745920. Its totient is φ = 46403280.

The previous prime is 57144907. The next prime is 57144917. The reversal of 57144913 is 31944175.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57144913 - 2²⁵ = 23590481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57144917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214698 + ... + 214963.

It is an arithmetic number, because the mean of its divisors is an integer number (8593240).

Almost surely, 2^57144913 is an apocalyptic number.

It is an amenable number.

57144913 is a deficient number, since it is larger than the sum of its proper divisors (11601007).

57144913 is a wasteful number, since it uses less digits than its factorization.

57144913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429687.

The product of its digits is 15120, while the sum is 34.

The square root of 57144913 is about 7559.4254411298. The cubic root of 57144913 is about 385.1759762229.

The spelling of 57144913 in words is "fifty-seven million, one hundred forty-four thousand, nine hundred thirteen".