14139739 has 4 divisors (see below), whose sum is σ = 14371600. Its totient is φ = 13907880.

The previous prime is 14139731. The next prime is 14139757. The reversal of 14139739 is 93793141.

14139739 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 14139739 - 2³ = 14139731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14139698 and 14139707.

It is not an unprimeable number, because it can be changed into a prime (14139731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115839 + ... + 115960.

It is an arithmetic number, because the mean of its divisors is an integer number (3592900).

Almost surely, 2^14139739 is an apocalyptic number.

14139739 is a deficient number, since it is larger than the sum of its proper divisors (231861).

14139739 is an equidigital number, since it uses as much as digits as its factorization.

14139739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231860.

The product of its digits is 20412, while the sum is 37.

The square root of 14139739 is about 3760.2844307313. The cubic root of 14139739 is about 241.8134561773.

It can be divided in two parts, 14139 and 739, that added together give a triangular number (14878 = T₁₇₂).

The spelling of 14139739 in words is "fourteen million, one hundred thirty-nine thousand, seven hundred thirty-nine".