12859291 has 4 divisors (see below), whose sum is σ = 12871512. Its totient is φ = 12847072.

The previous prime is 12859289. The next prime is 12859303. The reversal of 12859291 is 19295821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12859291 - 2¹ = 12859289 is a prime.

It is a super-2 number, since 2×12859291² = 330722730045362, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12859291.

It is not an unprimeable number, because it can be changed into a prime (12859201) 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, 4366 + ... + 6691.

It is an arithmetic number, because the mean of its divisors is an integer number (3217878).

Almost surely, 2^12859291 is an apocalyptic number.

12859291 is a deficient number, since it is larger than the sum of its proper divisors (12221).

12859291 is a wasteful number, since it uses less digits than its factorization.

12859291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12220.

The product of its digits is 12960, while the sum is 37.

The square root of 12859291 is about 3585.9853597024. The cubic root of 12859291 is about 234.2820460071.

The spelling of 12859291 in words is "twelve million, eight hundred fifty-nine thousand, two hundred ninety-one".