157685130 has 48 divisors (see below), whose sum is σ = 425172384. Its totient is φ = 42048720.

The previous prime is 157685119. The next prime is 157685147. The reversal of 157685130 is 31586751.

157685130 is a `hidden beast` number, since 1 + 576 + 8 + 51 + 30 = 666.

It is a super-3 number, since 3×157685130³ (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30016 + ... + 34875.

It is an arithmetic number, because the mean of its divisors is an integer number (8857758).

Almost surely, 2^157685130 is an apocalyptic number.

157685130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157685130 is an abundant number, since it is smaller than the sum of its proper divisors (267487254).

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

157685130 is an equidigital number, since it uses as much as digits as its factorization.

157685130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64913 (or 64901 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 157685130 is about 12557.2739876137. The cubic root of 157685130 is about 540.2526595430.

The spelling of 157685130 in words is "one hundred fifty-seven million, six hundred eighty-five thousand, one hundred thirty".