3139137747 has 10 divisors (see below), whose sum is σ = 4689329348. Its totient is φ = 2092758444.

The previous prime is 3139137739. The next prime is 3139137767. The reversal of 3139137747 is 7477319313.

It is not a de Polignac number, because 3139137747 - 2³ = 3139137739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3139137707) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 19377313 + ... + 19377474.

Almost surely, 2^3139137747 is an apocalyptic number.

3139137747 is a deficient number, since it is larger than the sum of its proper divisors (1550191601).

3139137747 is an equidigital number, since it uses as much as digits as its factorization.

3139137747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38754799 (or 38754790 counting only the distinct ones).

The product of its digits is 333396, while the sum is 45.

The square root of 3139137747 is about 56028.0085939167. The cubic root of 3139137747 is about 1464.2103005136.

The spelling of 3139137747 in words is "three billion, one hundred thirty-nine million, one hundred thirty-seven thousand, seven hundred forty-seven".