12392189 has 2 divisors, whose sum is σ = 12392190. Its totient is φ = 12392188.

The previous prime is 12392173. The next prime is 12392197. The reversal of 12392189 is 98129321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12020089 + 372100 = 3467^2 + 610^2 .

It is a cyclic number.

It is not a de Polignac number, because 12392189 - 2⁴ = 12392173 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 (12392129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6196094 + 6196095.

It is an arithmetic number, because the mean of its divisors is an integer number (6196095).

Almost surely, 2^12392189 is an apocalyptic number.

It is an amenable number.

12392189 is a deficient number, since it is larger than the sum of its proper divisors (1).

12392189 is an equidigital number, since it uses as much as digits as its factorization.

12392189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 35.

The square root of 12392189 is about 3520.2541101460. The cubic root of 12392189 is about 231.4102950962.

The spelling of 12392189 in words is "twelve million, three hundred ninety-two thousand, one hundred eighty-nine".