12895191 has 6 divisors (see below), whose sum is σ = 18626400. Its totient is φ = 8596788.

The previous prime is 12895177. The next prime is 12895193. The reversal of 12895191 is 19159821.

It is not a de Polignac number, because 12895191 - 2⁷ = 12895063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12895193) 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 5 ways as a sum of consecutive naturals, for example, 716391 + ... + 716408.

It is an arithmetic number, because the mean of its divisors is an integer number (3104400).

Almost surely, 2^12895191 is an apocalyptic number.

12895191 is a deficient number, since it is larger than the sum of its proper divisors (5731209).

12895191 is a wasteful number, since it uses less digits than its factorization.

12895191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432805 (or 1432802 counting only the distinct ones).

The product of its digits is 6480, while the sum is 36.

The square root of 12895191 is about 3590.9874686498. The cubic root of 12895191 is about 234.4998628544.

The spelling of 12895191 in words is "twelve million, eight hundred ninety-five thousand, one hundred ninety-one".