657038136 has 16 divisors (see below), whose sum is σ = 1642595400. Its totient is φ = 219012704.

The previous prime is 657038093. The next prime is 657038147. The reversal of 657038136 is 631830756.

657038136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×657038136² = 863398224316708992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 657038094 and 657038103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13688271 + ... + 13688318.

Almost surely, 2^657038136 is an apocalyptic number.

It is an amenable number.

657038136 is an abundant number, since it is smaller than the sum of its proper divisors (985557264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

657038136 is a wasteful number, since it uses less digits than its factorization.

657038136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27376598 (or 27376594 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 657038136 is about 25632.7551386892. The cubic root of 657038136 is about 869.3544054437.

The spelling of 657038136 in words is "six hundred fifty-seven million, thirty-eight thousand, one hundred thirty-six".