13424139 has 6 divisors (see below), whose sum is σ = 19390436. Its totient is φ = 8949420.

The previous prime is 13424123. The next prime is 13424141. The reversal of 13424139 is 93142431.

13424139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13424139 - 2⁴ = 13424123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13424119) 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, 745777 + ... + 745794.

Almost surely, 2^13424139 is an apocalyptic number.

13424139 is a deficient number, since it is larger than the sum of its proper divisors (5966297).

13424139 is a wasteful number, since it uses less digits than its factorization.

13424139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491577 (or 1491574 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 13424139 is about 3663.8966961420. The cubic root of 13424139 is about 237.6633129749.

The spelling of 13424139 in words is "thirteen million, four hundred twenty-four thousand, one hundred thirty-nine".