5139807131 has 4 divisors (see below), whose sum is σ = 5141548272. Its totient is φ = 5138065992.

The previous prime is 5139807089. The next prime is 5139807133. The reversal of 5139807131 is 1317089315.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1317089315 = 5 ⋅263417863.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5139807131 is a prime.

It is a super-2 number, since 2×5139807131² = 52835234687756902322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5139807133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 866135 + ... + 872048.

It is an arithmetic number, because the mean of its divisors is an integer number (1285387068).

Almost surely, 2^5139807131 is an apocalyptic number.

5139807131 is a deficient number, since it is larger than the sum of its proper divisors (1741141).

5139807131 is a wasteful number, since it uses less digits than its factorization.

5139807131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1741140.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 5139807131 is about 71692.4482145784. The cubic root of 5139807131 is about 1725.7674530622.

The spelling of 5139807131 in words is "five billion, one hundred thirty-nine million, eight hundred seven thousand, one hundred thirty-one".