5131135685 has 16 divisors (see below), whose sum is σ = 6635003760. Its totient is φ = 3786862080.

The previous prime is 5131135577. The next prime is 5131135699. The reversal of 5131135685 is 5865311315.

It can be written as a sum of positive squares in 8 ways, for example, as 9443329 + 5121692356 = 3073^2 + 71566^2 .

It is not a de Polignac number, because 5131135685 - 2¹⁶ = 5131070149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88931 + ... + 134799.

It is an arithmetic number, because the mean of its divisors is an integer number (414687735).

Almost surely, 2^5131135685 is an apocalyptic number.

It is an amenable number.

5131135685 is a deficient number, since it is larger than the sum of its proper divisors (1503868075).

5131135685 is a wasteful number, since it uses less digits than its factorization.

5131135685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47608.

The product of its digits is 54000, while the sum is 38.

The square root of 5131135685 is about 71631.9459808262. The cubic root of 5131135685 is about 1724.7963840040.

The spelling of 5131135685 in words is "five billion, one hundred thirty-one million, one hundred thirty-five thousand, six hundred eighty-five".