157871730 has 32 divisors (see below), whose sum is σ = 388136448. Its totient is φ = 41072000.

The previous prime is 157871729. The next prime is 157871743. The reversal of 157871730 is 37178751.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62946 + ... + 65405.

It is an arithmetic number, because the mean of its divisors is an integer number (12129264).

Almost surely, 2^157871730 is an apocalyptic number.

157871730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157871730 is an abundant number, since it is smaller than the sum of its proper divisors (230264718).

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

157871730 is a wasteful number, since it uses less digits than its factorization.

157871730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128402.

The product of its (nonzero) digits is 41160, while the sum is 39.

The square root of 157871730 is about 12564.7017473556. The cubic root of 157871730 is about 540.4656819688.

The spelling of 157871730 in words is "one hundred fifty-seven million, eight hundred seventy-one thousand, seven hundred thirty".