157164591 has 8 divisors (see below), whose sum is σ = 209612160. Its totient is φ = 104746712.

The previous prime is 157164571. The next prime is 157164611. The reversal of 157164591 is 195461751.

157164591 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (157164571) and next prime (157164611).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157164591 - 2⁷ = 157164463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157164551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12820 + ... + 21878.

It is an arithmetic number, because the mean of its divisors is an integer number (26201520).

Almost surely, 2^157164591 is an apocalyptic number.

157164591 is a deficient number, since it is larger than the sum of its proper divisors (52447569).

157164591 is an equidigital number, since it uses as much as digits as its factorization.

157164591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14845.

The product of its digits is 37800, while the sum is 39.

The square root of 157164591 is about 12536.5302615995. The cubic root of 157164591 is about 539.6575228960.

The spelling of 157164591 in words is "one hundred fifty-seven million, one hundred sixty-four thousand, five hundred ninety-one".