12159879 has 16 divisors (see below), whose sum is σ = 17291520. Its totient is φ = 7574400.

The previous prime is 12159877. The next prime is 12159881. The reversal of 12159879 is 97895121.

It is an interprime number because it is at equal distance from previous prime (12159877) and next prime (12159881).

It is not a de Polignac number, because 12159879 - 2¹ = 12159877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12159879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12159877) 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 15 ways as a sum of consecutive naturals, for example, 6912 + ... + 8490.

It is an arithmetic number, because the mean of its divisors is an integer number (1080720).

Almost surely, 2^12159879 is an apocalyptic number.

12159879 is a deficient number, since it is larger than the sum of its proper divisors (5131641).

12159879 is a wasteful number, since it uses less digits than its factorization.

12159879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1750.

The product of its digits is 45360, while the sum is 42.

The square root of 12159879 is about 3487.1018052245. The cubic root of 12159879 is about 229.9551204178.

The spelling of 12159879 in words is "twelve million, one hundred fifty-nine thousand, eight hundred seventy-nine".