12644341 has 2 divisors, whose sum is σ = 12644342. Its totient is φ = 12644340.

The previous prime is 12644299. The next prime is 12644353. The reversal of 12644341 is 14344621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12574116 + 70225 = 3546^2 + 265^2 .

It is an emirp because it is prime and its reverse (14344621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12644341 - 2⁷ = 12644213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12644371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6322170 + 6322171.

It is an arithmetic number, because the mean of its divisors is an integer number (6322171).

Almost surely, 2^12644341 is an apocalyptic number.

It is an amenable number.

12644341 is a deficient number, since it is larger than the sum of its proper divisors (1).

12644341 is an equidigital number, since it uses as much as digits as its factorization.

12644341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 25.

The square root of 12644341 is about 3555.8882153409. Note that the first 3 decimals coincide. The cubic root of 12644341 is about 232.9693206243.

Adding to 12644341 its reverse (14344621), we get a palindrome (26988962).

The spelling of 12644341 in words is "twelve million, six hundred forty-four thousand, three hundred forty-one".