12391159 has 8 divisors (see below), whose sum is σ = 13622400. Its totient is φ = 11177400.

The previous prime is 12391111. The next prime is 12391163. The reversal of 12391159 is 95119321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12391159 - 2⁷ = 12391031 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12391159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12397159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2859 + ... + 5740.

It is an arithmetic number, because the mean of its divisors is an integer number (1702800).

Almost surely, 2^12391159 is an apocalyptic number.

12391159 is a deficient number, since it is larger than the sum of its proper divisors (1231241).

12391159 is a wasteful number, since it uses less digits than its factorization.

12391159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8741.

The product of its digits is 2430, while the sum is 31.

The square root of 12391159 is about 3520.1078108490. The cubic root of 12391159 is about 231.4038835518.

The spelling of 12391159 in words is "twelve million, three hundred ninety-one thousand, one hundred fifty-nine".