657045157 has 8 divisors (see below), whose sum is σ = 664722432. Its totient is φ = 649412400.

The previous prime is 657045127. The next prime is 657045161. The reversal of 657045157 is 751540756.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 657045157 - 2²³ = 648656549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (657045107) 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, 19032 + ... + 40942.

It is an arithmetic number, because the mean of its divisors is an integer number (83090304).

Almost surely, 2^657045157 is an apocalyptic number.

It is an amenable number.

657045157 is a deficient number, since it is larger than the sum of its proper divisors (7677275).

657045157 is a wasteful number, since it uses less digits than its factorization.

657045157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22259.

The product of its (nonzero) digits is 147000, while the sum is 40.

The square root of 657045157 is about 25632.8920919977. The cubic root of 657045157 is about 869.3575020248.

The spelling of 657045157 in words is "six hundred fifty-seven million, forty-five thousand, one hundred fifty-seven".