12159169 has 9 divisors (see below), whose sum is σ = 13407331. Its totient is φ = 11018920.

The previous prime is 12159163. The next prime is 12159181. The reversal of 12159169 is 96195121.

It is a happy number.

The square root of 12159169 is 3487.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 680625 + 11478544 = 825^2 + 3388^2 .

It is a de Polignac number, because none of the positive numbers 2^k-12159169 is a prime.

It is a super-2 number, since 2×12159169² = 295690781541122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12159163) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 38199 + ... + 38515.

Almost surely, 2^12159169 is an apocalyptic number.

12159169 is the 3487-th square number.

12159169 is the 1744-th centered octagonal number.

It is an amenable number.

12159169 is a deficient number, since it is larger than the sum of its proper divisors (1248162).

12159169 is an frugal number, since it uses more digits than its factorization.

12159169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656 (or 328 counting only the distinct ones).

The product of its digits is 4860, while the sum is 34.

The cubic root of 12159169 is about 229.9506447342.

The spelling of 12159169 in words is "twelve million, one hundred fifty-nine thousand, one hundred sixty-nine".