139370807 has 4 divisors (see below), whose sum is σ = 139738920. Its totient is φ = 139002696.

The previous prime is 139370789. The next prime is 139370821. The reversal of 139370807 is 708073931.

It is a happy number.

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 139370807 - 2⁸ = 139370551 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 (139370827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183488 + ... + 184245.

It is an arithmetic number, because the mean of its divisors is an integer number (34934730).

Almost surely, 2^139370807 is an apocalyptic number.

139370807 is a deficient number, since it is larger than the sum of its proper divisors (368113).

139370807 is an equidigital number, since it uses as much as digits as its factorization.

139370807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368112.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 139370807 is about 11805.5413683575. The cubic root of 139370807 is about 518.4703655322.

The spelling of 139370807 in words is "one hundred thirty-nine million, three hundred seventy thousand, eight hundred seven".