13157349 has 4 divisors (see below), whose sum is σ = 17543136. Its totient is φ = 8771564.

The previous prime is 13157341. The next prime is 13157359. The reversal of 13157349 is 94375131.

13157349 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94375131 = 3 ⋅31458377.

It is a cyclic number.

It is not a de Polignac number, because 13157349 - 2³ = 13157341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13157341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2192889 + ... + 2192894.

It is an arithmetic number, because the mean of its divisors is an integer number (4385784).

Almost surely, 2^13157349 is an apocalyptic number.

It is an amenable number.

13157349 is a deficient number, since it is larger than the sum of its proper divisors (4385787).

13157349 is an equidigital number, since it uses as much as digits as its factorization.

13157349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4385786.

The product of its digits is 11340, while the sum is 33.

The square root of 13157349 is about 3627.3060251377. The cubic root of 13157349 is about 236.0783339024.

The spelling of 13157349 in words is "thirteen million, one hundred fifty-seven thousand, three hundred forty-nine".