12445841 has 2 divisors, whose sum is σ = 12445842. Its totient is φ = 12445840.

The previous prime is 12445781. The next prime is 12445859. The reversal of 12445841 is 14854421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12397441 + 48400 = 3521^2 + 220^2 .

It is a cyclic number.

It is not a de Polignac number, because 12445841 - 2¹⁴ = 12429457 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12445871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6222920 + 6222921.

It is an arithmetic number, because the mean of its divisors is an integer number (6222921).

Almost surely, 2^12445841 is an apocalyptic number.

It is an amenable number.

12445841 is a deficient number, since it is larger than the sum of its proper divisors (1).

12445841 is an equidigital number, since it uses as much as digits as its factorization.

12445841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5120, while the sum is 29.

The square root of 12445841 is about 3527.8663523439. The cubic root of 12445841 is about 231.7437780211.

The spelling of 12445841 in words is "twelve million, four hundred forty-five thousand, eight hundred forty-one".