12192239 has 2 divisors, whose sum is σ = 12192240. Its totient is φ = 12192238.

The previous prime is 12192197. The next prime is 12192287. The reversal of 12192239 is 93229121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12192239 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 (12191239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6096119 + 6096120.

It is an arithmetic number, because the mean of its divisors is an integer number (6096120).

Almost surely, 2^12192239 is an apocalyptic number.

12192239 is a deficient number, since it is larger than the sum of its proper divisors (1).

12192239 is an equidigital number, since it uses as much as digits as its factorization.

12192239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 29.

The square root of 12192239 is about 3491.7386786528. The cubic root of 12192239 is about 230.1589260763.

The spelling of 12192239 in words is "twelve million, one hundred ninety-two thousand, two hundred thirty-nine".