157571490 has 32 divisors (see below), whose sum is σ = 381648960. Its totient is φ = 41632704.

The previous prime is 157571489. The next prime is 157571497. The reversal of 157571490 is 94175751.

It is not an unprimeable number, because it can be changed into a prime (157571497) 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, 20824 + ... + 27363.

It is an arithmetic number, because the mean of its divisors is an integer number (11926530).

Almost surely, 2^157571490 is an apocalyptic number.

157571490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157571490 is an abundant number, since it is smaller than the sum of its proper divisors (224077470).

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

157571490 is a wasteful number, since it uses less digits than its factorization.

157571490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48306.

The product of its (nonzero) digits is 44100, while the sum is 39.

The square root of 157571490 is about 12552.7483046542. The cubic root of 157571490 is about 540.1228458511.

The spelling of 157571490 in words is "one hundred fifty-seven million, five hundred seventy-one thousand, four hundred ninety".