12245939 has 2 divisors, whose sum is σ = 12245940. Its totient is φ = 12245938.

The previous prime is 12245929. The next prime is 12245941. The reversal of 12245939 is 93954221.

12245939 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12245939 is a prime.

It is a Sophie Germain prime.

Together with 12245941, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12245899 and 12245908.

It is not a weakly prime, because it can be changed into another prime (12245929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6122969 + 6122970.

It is an arithmetic number, because the mean of its divisors is an integer number (6122970).

Almost surely, 2^12245939 is an apocalyptic number.

12245939 is a deficient number, since it is larger than the sum of its proper divisors (1).

12245939 is an equidigital number, since it uses as much as digits as its factorization.

12245939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 35.

The square root of 12245939 is about 3499.4198090541. The cubic root of 12245939 is about 230.4963383429.

The spelling of 12245939 in words is "twelve million, two hundred forty-five thousand, nine hundred thirty-nine".