12644041 has 2 divisors, whose sum is σ = 12644042. Its totient is φ = 12644040.

The previous prime is 12644017. The next prime is 12644057. The reversal of 12644041 is 14044621.

12644041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12278016 + 366025 = 3504^2 + 605^2 .

It is a cyclic number.

It is not a de Polignac number, because 12644041 - 2¹⁵ = 12611273 is a prime.

It is not a weakly prime, because it can be changed into another prime (12644341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6322020 + 6322021.

It is an arithmetic number, because the mean of its divisors is an integer number (6322021).

Almost surely, 2^12644041 is an apocalyptic number.

It is an amenable number.

12644041 is a deficient number, since it is larger than the sum of its proper divisors (1).

12644041 is an equidigital number, since it uses as much as digits as its factorization.

12644041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 12644041 is about 3555.8460315374. The cubic root of 12644041 is about 232.9674781308.

Adding to 12644041 its reverse (14044621), we get a palindrome (26688662).

The spelling of 12644041 in words is "twelve million, six hundred forty-four thousand, forty-one".