157621086 has 64 divisors (see below), whose sum is σ = 401587200. Its totient is φ = 44890848.

The previous prime is 157621039. The next prime is 157621091. The reversal of 157621086 is 680126751.

157621086 is a `hidden beast` number, since 1 + 576 + 2 + 1 + 0 + 86 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 157621086.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 189720 + ... + 190548.

It is an arithmetic number, because the mean of its divisors is an integer number (6274800).

Almost surely, 2^157621086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157621086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200793600).

157621086 is an abundant number, since it is smaller than the sum of its proper divisors (243966114).

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

157621086 is a wasteful number, since it uses less digits than its factorization.

157621086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350 (or 1344 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 157621086 is about 12554.7236528727. The cubic root of 157621086 is about 540.1795082220.

The spelling of 157621086 in words is "one hundred fifty-seven million, six hundred twenty-one thousand, eighty-six".