5131255131 has 12 divisors (see below), whose sum is σ = 7414594200. Its totient is φ = 3419553120.

The previous prime is 5131255117. The next prime is 5131255141. The reversal of 5131255131 is 1315521315.

5131255131 is a `hidden beast` number, since 51 + 31 + 2 + 551 + 31 = 666.

It is not a de Polignac number, because 5131255131 - 2²³ = 5122866523 is a prime.

It is a super-2 number, since 2×5131255131² = 52659558438827654322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5131255095 and 5131255104.

It is not an unprimeable number, because it can be changed into a prime (5131255141) 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 11 ways as a sum of consecutive naturals, for example, 81330 + ... + 129911.

It is an arithmetic number, because the mean of its divisors is an integer number (617882850).

Almost surely, 2^5131255131 is an apocalyptic number.

5131255131 is a deficient number, since it is larger than the sum of its proper divisors (2283339069).

5131255131 is a wasteful number, since it uses less digits than its factorization.

5131255131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213946 (or 213943 counting only the distinct ones).

The product of its digits is 2250, while the sum is 27.

The square root of 5131255131 is about 71632.7797240900. The cubic root of 5131255131 is about 1724.8097675538.

Adding to 5131255131 its reverse (1315521315), we get a palindrome (6446776446).

The spelling of 5131255131 in words is "five billion, one hundred thirty-one million, two hundred fifty-five thousand, one hundred thirty-one".