12805197 has 16 divisors (see below), whose sum is σ = 17563392. Its totient is φ = 8294720.

The previous prime is 12805193. The next prime is 12805217. The reversal of 12805197 is 79150821.

It is a cyclic number.

It is not a de Polignac number, because 12805197 - 2² = 12805193 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12805193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27547 + ... + 28007.

It is an arithmetic number, because the mean of its divisors is an integer number (1097712).

Almost surely, 2^12805197 is an apocalyptic number.

It is an amenable number.

12805197 is a deficient number, since it is larger than the sum of its proper divisors (4758195).

12805197 is a wasteful number, since it uses less digits than its factorization.

12805197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708.

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 12805197 is about 3578.4349931220. The cubic root of 12805197 is about 233.9530733571.

The spelling of 12805197 in words is "twelve million, eight hundred five thousand, one hundred ninety-seven".