12807109 has 4 divisors (see below), whose sum is σ = 14636704. Its totient is φ = 10977516.

The previous prime is 12807107. The next prime is 12807127. The reversal of 12807109 is 90170821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12807109 - 2¹ = 12807107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12807107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914787 + ... + 914800.

It is an arithmetic number, because the mean of its divisors is an integer number (3659176).

Almost surely, 2^12807109 is an apocalyptic number.

It is an amenable number.

12807109 is a deficient number, since it is larger than the sum of its proper divisors (1829595).

12807109 is an equidigital number, since it uses as much as digits as its factorization.

12807109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1829594.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 12807109 is about 3578.7021390443. The cubic root of 12807109 is about 233.9647169633.

The spelling of 12807109 in words is "twelve million, eight hundred seven thousand, one hundred nine".