157131885 has 16 divisors (see below), whose sum is σ = 257544000. Its totient is φ = 81759360.

The previous prime is 157131853. The next prime is 157131899. The reversal of 157131885 is 588131751.

It is a happy number.

It is not a de Polignac number, because 157131885 - 2⁵ = 157131853 is a prime.

It is a congruent number.

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, 127135 + ... + 128364.

It is an arithmetic number, because the mean of its divisors is an integer number (16096500).

Almost surely, 2^157131885 is an apocalyptic number.

157131885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157131885 is a deficient number, since it is larger than the sum of its proper divisors (100412115).

157131885 is a wasteful number, since it uses less digits than its factorization.

157131885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255548.

The product of its digits is 33600, while the sum is 39.

The square root of 157131885 is about 12535.2257658169. The cubic root of 157131885 is about 539.6200859999.

The spelling of 157131885 in words is "one hundred fifty-seven million, one hundred thirty-one thousand, eight hundred eighty-five".