12432169 has 2 divisors, whose sum is σ = 12432170. Its totient is φ = 12432168.

The previous prime is 12432163. The next prime is 12432179. The reversal of 12432169 is 96123421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11471769 + 960400 = 3387^2 + 980^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12432169 is a prime.

It is a super-2 number, since 2×12432169² = 309117652089122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12432163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6216084 + 6216085.

It is an arithmetic number, because the mean of its divisors is an integer number (6216085).

Almost surely, 2^12432169 is an apocalyptic number.

It is an amenable number.

12432169 is a deficient number, since it is larger than the sum of its proper divisors (1).

12432169 is an equidigital number, since it uses as much as digits as its factorization.

12432169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 28.

The square root of 12432169 is about 3525.9281047690. The cubic root of 12432169 is about 231.6588885702.

It can be divided in two parts, 1243216 and 9, that added together give a square (1243225 = 1115²).

The spelling of 12432169 in words is "twelve million, four hundred thirty-two thousand, one hundred sixty-nine".