395107139 has 6 divisors (see below), whose sum is σ = 459614484. Its totient is φ = 338663220.

The previous prime is 395107117. The next prime is 395107157. The reversal of 395107139 is 931701593.

It is not a de Polignac number, because 395107139 - 2⁸ = 395106883 is a prime.

It is a super-2 number, since 2×395107139² = 312219302577530642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (395107159) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4031657 + ... + 4031754.

It is an arithmetic number, because the mean of its divisors is an integer number (76602414).

Almost surely, 2^395107139 is an apocalyptic number.

395107139 is a deficient number, since it is larger than the sum of its proper divisors (64507345).

395107139 is an equidigital number, since it uses as much as digits as its factorization.

395107139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8063425 (or 8063418 counting only the distinct ones).

The product of its (nonzero) digits is 25515, while the sum is 38.

The square root of 395107139 is about 19877.3021056682. The cubic root of 395107139 is about 733.7897240097.

The spelling of 395107139 in words is "three hundred ninety-five million, one hundred seven thousand, one hundred thirty-nine".