157970001 has 24 divisors (see below), whose sum is σ = 255718720. Its totient is φ = 84955392.

The previous prime is 157969991. The next prime is 157970023. The reversal of 157970001 is 100079751.

157970001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 157970001 - 2⁶ = 157969937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157970041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6946 + ... + 19083.

Almost surely, 2^157970001 is an apocalyptic number.

It is an amenable number.

157970001 is a deficient number, since it is larger than the sum of its proper divisors (97748719).

157970001 is a wasteful number, since it uses less digits than its factorization.

157970001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26073 (or 26056 counting only the distinct ones).

The product of its (nonzero) digits is 2205, while the sum is 30.

The square root of 157970001 is about 12568.6117371808. The cubic root of 157970001 is about 540.5778005994.

The spelling of 157970001 in words is "one hundred fifty-seven million, nine hundred seventy thousand, one".