139713407 has 4 divisors (see below), whose sum is σ = 142962600. Its totient is φ = 136464216.

The previous prime is 139713397. The next prime is 139713419. The reversal of 139713407 is 704317931.

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 139713407 - 2⁸ = 139713151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139713467) 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, 1624532 + ... + 1624617.

It is an arithmetic number, because the mean of its divisors is an integer number (35740650).

Almost surely, 2^139713407 is an apocalyptic number.

139713407 is a deficient number, since it is larger than the sum of its proper divisors (3249193).

139713407 is an equidigital number, since it uses as much as digits as its factorization.

139713407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3249192.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 139713407 is about 11820.0425972160. The cubic root of 139713407 is about 518.8948508834.

The spelling of 139713407 in words is "one hundred thirty-nine million, seven hundred thirteen thousand, four hundred seven".