12159517 has 2 divisors, whose sum is σ = 12159518. Its totient is φ = 12159516.

The previous prime is 12159503. The next prime is 12159529. The reversal of 12159517 is 71595121.

12159517 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10929636 + 1229881 = 3306^2 + 1109^2 .

It is a cyclic number.

It is not a de Polignac number, because 12159517 - 2¹¹ = 12157469 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12159547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6079758 + 6079759.

It is an arithmetic number, because the mean of its divisors is an integer number (6079759).

Almost surely, 2^12159517 is an apocalyptic number.

It is an amenable number.

12159517 is a deficient number, since it is larger than the sum of its proper divisors (1).

12159517 is an equidigital number, since it uses as much as digits as its factorization.

12159517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3150, while the sum is 31.

The square root of 12159517 is about 3487.0498992702. The cubic root of 12159517 is about 229.9528384713.

The spelling of 12159517 in words is "twelve million, one hundred fifty-nine thousand, five hundred seventeen".