12159518 has 8 divisors (see below), whose sum is σ = 20844912. Its totient is φ = 5211216.

The previous prime is 12159517. The next prime is 12159529. The reversal of 12159518 is 81595121.

12159518 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12159517) 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, 434255 + ... + 434282.

It is an arithmetic number, because the mean of its divisors is an integer number (2605614).

Almost surely, 2^12159518 is an apocalyptic number.

12159518 is a deficient number, since it is larger than the sum of its proper divisors (8685394).

12159518 is an equidigital number, since it uses as much as digits as its factorization.

12159518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868546.

The product of its digits is 3600, while the sum is 32.

The square root of 12159518 is about 3487.0500426578. The cubic root of 12159518 is about 229.9528447751.

The spelling of 12159518 in words is "twelve million, one hundred fifty-nine thousand, five hundred eighteen".