457636157 has 6 divisors (see below), whose sum is σ = 503021694. Its totient is φ = 416032760.

The previous prime is 457636093. The next prime is 457636199. The reversal of 457636157 is 751636754.

It can be written as a sum of positive squares in only one way, i.e., 251254201 + 206381956 = 15851^2 + 14366^2 .

It is not a de Polignac number, because 457636157 - 2⁶ = 457636093 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 (457636657) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1890938 + ... + 1891179.

It is an arithmetic number, because the mean of its divisors is an integer number (83836949).

Almost surely, 2^457636157 is an apocalyptic number.

It is an amenable number.

457636157 is a deficient number, since it is larger than the sum of its proper divisors (45385537).

457636157 is a wasteful number, since it uses less digits than its factorization.

457636157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3782139 (or 3782128 counting only the distinct ones).

The product of its digits is 529200, while the sum is 44.

The square root of 457636157 is about 21392.4322366579. The cubic root of 457636157 is about 770.6197052017.

The spelling of 457636157 in words is "four hundred fifty-seven million, six hundred thirty-six thousand, one hundred fifty-seven".