157164571 has 2 divisors, whose sum is σ = 157164572. Its totient is φ = 157164570.

The previous prime is 157164551. The next prime is 157164611. The reversal of 157164571 is 175461751.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157164571 - 2⁷ = 157164443 is a prime.

It is a super-2 number, since 2×157164571² = 49401404755228082, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157164571.

It is not a weakly prime, because it can be changed into another prime (157164551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78582285 + 78582286.

It is an arithmetic number, because the mean of its divisors is an integer number (78582286).

Almost surely, 2^157164571 is an apocalyptic number.

157164571 is a deficient number, since it is larger than the sum of its proper divisors (1).

157164571 is an equidigital number, since it uses as much as digits as its factorization.

157164571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29400, while the sum is 37.

The square root of 157164571 is about 12536.5294639306. The cubic root of 157164571 is about 539.6575000046.

The spelling of 157164571 in words is "one hundred fifty-seven million, one hundred sixty-four thousand, five hundred seventy-one".