6504013131 has 16 divisors (see below), whose sum is σ = 10811866368. Its totient is φ = 3378708000.

The previous prime is 6504013127. The next prime is 6504013181. The reversal of 6504013131 is 1313104056.

It is not a de Polignac number, because 6504013131 - 2² = 6504013127 is a prime.

It is a super-2 number, since 2×6504013131² = 84604373616440846322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6504013181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14077720 + ... + 14078181.

It is an arithmetic number, because the mean of its divisors is an integer number (675741648).

Almost surely, 2^6504013131 is an apocalyptic number.

6504013131 is a deficient number, since it is larger than the sum of its proper divisors (4307853237).

6504013131 is a wasteful number, since it uses less digits than its factorization.

6504013131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28155922.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 6504013131 is about 80647.4620245423. The cubic root of 6504013131 is about 1866.6395777567.

Adding to 6504013131 its reverse (1313104056), we get a palindrome (7817117187).

The spelling of 6504013131 in words is "six billion, five hundred four million, thirteen thousand, one hundred thirty-one".