13694139 has 6 divisors (see below), whose sum is σ = 19780436. Its totient is φ = 9129420.

The previous prime is 13694113. The next prime is 13694179. The reversal of 13694139 is 93149631.

It is not a de Polignac number, because 13694139 - 2¹⁶ = 13628603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13694179) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 760777 + ... + 760794.

Almost surely, 2^13694139 is an apocalyptic number.

13694139 is a deficient number, since it is larger than the sum of its proper divisors (6086297).

13694139 is a wasteful number, since it uses less digits than its factorization.

13694139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521577 (or 1521574 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 13694139 is about 3700.5592820545. The cubic root of 13694139 is about 239.2461240253.

The spelling of 13694139 in words is "thirteen million, six hundred ninety-four thousand, one hundred thirty-nine".