12604131 has 24 divisors (see below), whose sum is σ = 18869760. Its totient is φ = 8102256.

The previous prime is 12604099. The next prime is 12604159. The reversal of 12604131 is 13140621.

It is a happy number.

12604131 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12604131 - 2⁵ = 12604099 is a prime.

It is a super-2 number, since 2×12604131² = 317728236530322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12604181) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34930 + ... + 35288.

It is an arithmetic number, because the mean of its divisors is an integer number (786240).

Almost surely, 2^12604131 is an apocalyptic number.

12604131 is a deficient number, since it is larger than the sum of its proper divisors (6265629).

12604131 is a wasteful number, since it uses less digits than its factorization.

12604131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495 (or 492 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 12604131 is about 3550.2297108779. The cubic root of 12604131 is about 232.7221047890.

Adding to 12604131 its reverse (13140621), we get a palindrome (25744752).

The spelling of 12604131 in words is "twelve million, six hundred four thousand, one hundred thirty-one".