13809194 has 16 divisors (see below), whose sum is σ = 23722368. Its totient is φ = 5905872.

The previous prime is 13809179. The next prime is 13809209. The reversal of 13809194 is 49190831.

13809194 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13809179) and next prime (13809209).

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9947 + ... + 11249.

It is an arithmetic number, because the mean of its divisors is an integer number (1482648).

Almost surely, 2^13809194 is an apocalyptic number.

13809194 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13809194 is a deficient number, since it is larger than the sum of its proper divisors (9913174).

13809194 is a wasteful number, since it uses less digits than its factorization.

13809194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2069.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 13809194 is about 3716.0723889612. The cubic root of 13809194 is about 239.9142865216.

The spelling of 13809194 in words is "thirteen million, eight hundred nine thousand, one hundred ninety-four".