157653657 has 24 divisors (see below), whose sum is σ = 269231040. Its totient is φ = 86980320.

The previous prime is 157653649. The next prime is 157653673. The reversal of 157653657 is 756356751.

157653657 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 157653657 - 2³ = 157653649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157653607) 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, 41319 + ... + 44972.

It is an arithmetic number, because the mean of its divisors is an integer number (11217960).

Almost surely, 2^157653657 is an apocalyptic number.

It is an amenable number.

157653657 is a deficient number, since it is larger than the sum of its proper divisors (111577383).

157653657 is a wasteful number, since it uses less digits than its factorization.

157653657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86333 (or 86330 counting only the distinct ones).

The product of its digits is 661500, while the sum is 45.

The square root of 157653657 is about 12556.0207470361. The cubic root of 157653657 is about 540.2167134282.

The spelling of 157653657 in words is "one hundred fifty-seven million, six hundred fifty-three thousand, six hundred fifty-seven".