12809195 has 16 divisors (see below), whose sum is σ = 17867520. Its totient is φ = 8633184.

The previous prime is 12809191. The next prime is 12809221. The reversal of 12809195 is 59190821.

It is not a de Polignac number, because 12809195 - 2² = 12809191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (12809191) 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, 1037 + ... + 5166.

It is an arithmetic number, because the mean of its divisors is an integer number (1116720).

Almost surely, 2^12809195 is an apocalyptic number.

12809195 is a deficient number, since it is larger than the sum of its proper divisors (5058325).

12809195 is an equidigital number, since it uses as much as digits as its factorization.

12809195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6274.

The product of its (nonzero) digits is 6480, while the sum is 35.

The square root of 12809195 is about 3578.9935736181. The cubic root of 12809195 is about 233.9774188646.

The spelling of 12809195 in words is "twelve million, eight hundred nine thousand, one hundred ninety-five".