13158994 has 8 divisors (see below), whose sum is σ = 19756800. Its totient is φ = 6573396.

The previous prime is 13158979. The next prime is 13159019. The reversal of 13158994 is 49985131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 447 + ... + 5149.

It is an arithmetic number, because the mean of its divisors is an integer number (2469600).

Almost surely, 2^13158994 is an apocalyptic number.

13158994 is a deficient number, since it is larger than the sum of its proper divisors (6597806).

13158994 is a wasteful number, since it uses less digits than its factorization.

13158994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6104.

The product of its digits is 38880, while the sum is 40.

The square root of 13158994 is about 3627.5327703551. The cubic root of 13158994 is about 236.0881720716.

The spelling of 13158994 in words is "thirteen million, one hundred fifty-eight thousand, nine hundred ninety-four".