13138658 has 32 divisors (see below), whose sum is σ = 22450176. Its totient is φ = 5721408.

The previous prime is 13138639. The next prime is 13138673. The reversal of 13138658 is 85683131.

13138658 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75860 + ... + 76032.

It is an arithmetic number, because the mean of its divisors is an integer number (701568).

Almost surely, 2^13138658 is an apocalyptic number.

13138658 is a deficient number, since it is larger than the sum of its proper divisors (9311518).

13138658 is a wasteful number, since it uses less digits than its factorization.

13138658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338.

The product of its digits is 17280, while the sum is 35.

The square root of 13138658 is about 3624.7286795014. The cubic root of 13138658 is about 235.9664919390.

The spelling of 13138658 in words is "thirteen million, one hundred thirty-eight thousand, six hundred fifty-eight".