157031130 has 32 divisors (see below), whose sum is σ = 377334144. Its totient is φ = 41823936.

The previous prime is 157031123. The next prime is 157031137. The reversal of 157031130 is 31130751.

157031130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (157031123) and next prime (157031137).

It is a junction number, because it is equal to n+sod(n) for n = 157031097 and 157031106.

It is not an unprimeable number, because it can be changed into a prime (157031137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26304 + ... + 31716.

It is an arithmetic number, because the mean of its divisors is an integer number (11791692).

Almost surely, 2^157031130 is an apocalyptic number.

157031130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157031130 is an abundant number, since it is smaller than the sum of its proper divisors (220303014).

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

157031130 is a wasteful number, since it uses less digits than its factorization.

157031130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6390.

The product of its (nonzero) digits is 315, while the sum is 21.

The square root of 157031130 is about 12531.2062468064. The cubic root of 157031130 is about 539.5047242096.

Adding to 157031130 its reverse (31130751), we get a palindrome (188161881).

The spelling of 157031130 in words is "one hundred fifty-seven million, thirty-one thousand, one hundred thirty".