12445039 has 2 divisors, whose sum is σ = 12445040. Its totient is φ = 12445038.

The previous prime is 12445033. The next prime is 12445067. The reversal of 12445039 is 93054421.

It is an a-pointer prime, because the next prime (12445067) can be obtained adding 12445039 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12445039 - 2⁷ = 12444911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12444998 and 12445016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12445033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6222519 + 6222520.

It is an arithmetic number, because the mean of its divisors is an integer number (6222520).

Almost surely, 2^12445039 is an apocalyptic number.

12445039 is a deficient number, since it is larger than the sum of its proper divisors (1).

12445039 is an equidigital number, since it uses as much as digits as its factorization.

12445039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 12445039 is about 3527.7526840752. The cubic root of 12445039 is about 231.7388001199.

The spelling of 12445039 in words is "twelve million, four hundred forty-five thousand, thirty-nine".