5131132513 has 8 divisors (see below), whose sum is σ = 5630096808. Its totient is φ = 4647062784.

The previous prime is 5131132507. The next prime is 5131132529. The reversal of 5131132513 is 3152311315.

It can be written as a sum of positive squares in 4 ways, for example, as 308107809 + 4823024704 = 17553^2 + 69448^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-5131132513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5131132553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3722920 + ... + 3724297.

It is an arithmetic number, because the mean of its divisors is an integer number (703762101).

Almost surely, 2^5131132513 is an apocalyptic number.

5131132513 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

5131132513 is a deficient number, since it is larger than the sum of its proper divisors (498964295).

5131132513 is a wasteful number, since it uses less digits than its factorization.

5131132513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7447283.

The product of its digits is 1350, while the sum is 25.

The square root of 5131132513 is about 71631.9238398635. The cubic root of 5131132513 is about 1724.7960285885.

Adding to 5131132513 its reverse (3152311315), we get a palindrome (8283443828).

The spelling of 5131132513 in words is "five billion, one hundred thirty-one million, one hundred thirty-two thousand, five hundred thirteen".