12715131 has 32 divisors (see below), whose sum is σ = 20176128. Its totient is φ = 7021440.

The previous prime is 12715127. The next prime is 12715139. The reversal of 12715131 is 13151721.

It is a happy number.

It is not a de Polignac number, because 12715131 - 2² = 12715127 is a prime.

It is a super-2 number, since 2×12715131² = 323349112694322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12715098 and 12715107.

It is not an unprimeable number, because it can be changed into a prime (12715139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45765 + ... + 46041.

It is an arithmetic number, because the mean of its divisors is an integer number (630504).

Almost surely, 2^12715131 is an apocalyptic number.

12715131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12715131 is a deficient number, since it is larger than the sum of its proper divisors (7460997).

12715131 is a wasteful number, since it uses less digits than its factorization.

12715131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411.

The product of its digits is 210, while the sum is 21.

The square root of 12715131 is about 3565.8282347864. The cubic root of 12715131 is about 233.4032754045.

Adding to 12715131 its reverse (13151721), we get a palindrome (25866852).

The spelling of 12715131 in words is "twelve million, seven hundred fifteen thousand, one hundred thirty-one".