13157199 has 24 divisors (see below), whose sum is σ = 20846592. Its totient is φ = 7930320.

The previous prime is 13157191. The next prime is 13157231. The reversal of 13157199 is 99175131.

13157199 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 13157199 - 2³ = 13157191 is a prime.

It is a super-2 number, since 2×13157199² = 346223771051202, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13157191) 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, 34162 + ... + 34544.

It is an arithmetic number, because the mean of its divisors is an integer number (868608).

Almost surely, 2^13157199 is an apocalyptic number.

13157199 is a deficient number, since it is larger than the sum of its proper divisors (7689393).

13157199 is a wasteful number, since it uses less digits than its factorization.

13157199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747 (or 744 counting only the distinct ones).

The product of its digits is 8505, while the sum is 36.

The square root of 13157199 is about 3627.2853485768. The cubic root of 13157199 is about 236.0774367641.

The spelling of 13157199 in words is "thirteen million, one hundred fifty-seven thousand, one hundred ninety-nine".