157157899 has 8 divisors (see below), whose sum is σ = 160815600. Its totient is φ = 153535200.

The previous prime is 157157893. The next prime is 157157951. The reversal of 157157899 is 998751751.

It is a happy number.

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 157157899 - 2¹⁷ = 157026827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157157893) 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, 444 + ... + 17734.

It is an arithmetic number, because the mean of its divisors is an integer number (20101950).

Almost surely, 2^157157899 is an apocalyptic number.

157157899 is a deficient number, since it is larger than the sum of its proper divisors (3657701).

157157899 is a wasteful number, since it uses less digits than its factorization.

157157899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17501.

The product of its digits is 793800, while the sum is 52.

The square root of 157157899 is about 12536.2633587525. The cubic root of 157157899 is about 539.6498633264.

The spelling of 157157899 in words is "one hundred fifty-seven million, one hundred fifty-seven thousand, eight hundred ninety-nine".