12804165 has 24 divisors (see below), whose sum is σ = 24212448. Its totient is φ = 6207840.

The previous prime is 12804151. The next prime is 12804173. The reversal of 12804165 is 56140821.

It is not a de Polignac number, because 12804165 - 2⁸ = 12803909 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12439 + ... + 13428.

It is an arithmetic number, because the mean of its divisors is an integer number (1008852).

Almost surely, 2^12804165 is an apocalyptic number.

12804165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12804165 is a deficient number, since it is larger than the sum of its proper divisors (11408283).

12804165 is a wasteful number, since it uses less digits than its factorization.

12804165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25889 (or 25886 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 12804165 is about 3578.2907931022. The cubic root of 12804165 is about 233.9467882512.

Adding to 12804165 its reverse (56140821), we get a palindrome (68944986).

It can be divided in two parts, 1280 and 4165, that added together give a palindrome (5445).

The spelling of 12804165 in words is "twelve million, eight hundred four thousand, one hundred sixty-five".