12804136 has 32 divisors (see below), whose sum is σ = 24897600. Its totient is φ = 6168960.

The previous prime is 12804107. The next prime is 12804137. The reversal of 12804136 is 63140821.

It is a self number, because there is not a number n which added to its sum of digits gives 12804136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12804137) 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, 33595 + ... + 33973.

It is an arithmetic number, because the mean of its divisors is an integer number (778050).

Almost surely, 2^12804136 is an apocalyptic number.

It is an amenable number.

12804136 is a deficient number, since it is larger than the sum of its proper divisors (12093464).

12804136 is a wasteful number, since it uses less digits than its factorization.

12804136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529 (or 525 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 12804136 is about 3578.2867408859. The cubic root of 12804136 is about 233.9466116300.

Adding to 12804136 its reverse (63140821), we get a palindrome (75944957).

The spelling of 12804136 in words is "twelve million, eight hundred four thousand, one hundred thirty-six".