12804135 has 16 divisors (see below), whose sum is σ = 20620896. Its totient is φ = 6784128.

The previous prime is 12804107. The next prime is 12804137. The reversal of 12804135 is 53140821.

It is not a de Polignac number, because 12804135 - 2⁷ = 12804007 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 364 + ... + 5073.

It is an arithmetic number, because the mean of its divisors is an integer number (1288806).

Almost surely, 2^12804135 is an apocalyptic number.

12804135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12804135 is a deficient number, since it is larger than the sum of its proper divisors (7816761).

12804135 is a wasteful number, since it uses less digits than its factorization.

12804135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5602.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 12804135 is about 3578.2866011542. The cubic root of 12804135 is about 233.9466055396.

Adding to 12804135 its reverse (53140821), we get a palindrome (65944956).

The spelling of 12804135 in words is "twelve million, eight hundred four thousand, one hundred thirty-five".