139713051 has 4 divisors (see below), whose sum is σ = 186284072. Its totient is φ = 93142032.

The previous prime is 139713047. The next prime is 139713053. The reversal of 139713051 is 150317931.

It is a happy number.

139713051 is digitally balanced in base 2, 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 not a de Polignac number, because 139713051 - 2² = 139713047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139713053) 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, 23285506 + ... + 23285511.

It is an arithmetic number, because the mean of its divisors is an integer number (46571018).

Almost surely, 2^139713051 is an apocalyptic number.

139713051 is a deficient number, since it is larger than the sum of its proper divisors (46571021).

139713051 is an equidigital number, since it uses as much as digits as its factorization.

139713051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46571020.

The product of its (nonzero) digits is 2835, while the sum is 30.

The square root of 139713051 is about 11820.0275380390. The cubic root of 139713051 is about 518.8944101557.

The spelling of 139713051 in words is "one hundred thirty-nine million, seven hundred thirteen thousand, fifty-one".