157164551 has 2 divisors, whose sum is σ = 157164552. Its totient is φ = 157164550.

The previous prime is 157164533. The next prime is 157164571. The reversal of 157164551 is 155461751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157164551 - 2¹⁰ = 157163527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157164571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78582275 + 78582276.

It is an arithmetic number, because the mean of its divisors is an integer number (78582276).

Almost surely, 2^157164551 is an apocalyptic number.

157164551 is a deficient number, since it is larger than the sum of its proper divisors (1).

157164551 is an equidigital number, since it uses as much as digits as its factorization.

157164551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21000, while the sum is 35.

The square root of 157164551 is about 12536.5286662616. The cubic root of 157164551 is about 539.6574771132.

The spelling of 157164551 in words is "one hundred fifty-seven million, one hundred sixty-four thousand, five hundred fifty-one".