13924139 has 8 divisors (see below), whose sum is σ = 14910480. Its totient is φ = 12956416.

The previous prime is 13924123. The next prime is 13924151. The reversal of 13924139 is 93142931.

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

It is a cyclic number.

It is not a de Polignac number, because 13924139 - 2⁴ = 13924123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13924109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3089 + ... + 6114.

It is an arithmetic number, because the mean of its divisors is an integer number (1863810).

Almost surely, 2^13924139 is an apocalyptic number.

13924139 is a deficient number, since it is larger than the sum of its proper divisors (986341).

13924139 is an equidigital number, since it uses as much as digits as its factorization.

13924139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9309.

The product of its digits is 5832, while the sum is 32.

The square root of 13924139 is about 3731.5062642316. The cubic root of 13924139 is about 240.5781144159.

The spelling of 13924139 in words is "thirteen million, nine hundred twenty-four thousand, one hundred thirty-nine".