12159479 has 4 divisors (see below), whose sum is σ = 12688176. Its totient is φ = 11630784.

The previous prime is 12159473. The next prime is 12159481. The reversal of 12159479 is 97495121.

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 12159479 - 2⁴ = 12159463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12159473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264314 + ... + 264359.

It is an arithmetic number, because the mean of its divisors is an integer number (3172044).

Almost surely, 2^12159479 is an apocalyptic number.

12159479 is a deficient number, since it is larger than the sum of its proper divisors (528697).

12159479 is an equidigital number, since it uses as much as digits as its factorization.

12159479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528696.

The product of its digits is 22680, while the sum is 38.

The square root of 12159479 is about 3487.0444505340. The cubic root of 12159479 is about 229.9525989274.

The spelling of 12159479 in words is "twelve million, one hundred fifty-nine thousand, four hundred seventy-nine".