12665041 has 2 divisors, whose sum is σ = 12665042. Its totient is φ = 12665040.

The previous prime is 12664997. The next prime is 12665069. The reversal of 12665041 is 14056621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7507600 + 5157441 = 2740^2 + 2271^2 .

It is an emirp because it is prime and its reverse (14056621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12665041 - 2⁷ = 12664913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12664997 and 12665015.

It is not a weakly prime, because it can be changed into another prime (12665071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6332520 + 6332521.

It is an arithmetic number, because the mean of its divisors is an integer number (6332521).

Almost surely, 2^12665041 is an apocalyptic number.

It is an amenable number.

12665041 is a deficient number, since it is larger than the sum of its proper divisors (1).

12665041 is an equidigital number, since it uses as much as digits as its factorization.

12665041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 12665041 is about 3558.7976902319. The cubic root of 12665041 is about 233.0963823592.

Adding to 12665041 its product of nonzero digits (1440), we get a square (12666481 = 3559²).

The spelling of 12665041 in words is "twelve million, six hundred sixty-five thousand, forty-one".