12645041 has 2 divisors, whose sum is σ = 12645042. Its totient is φ = 12645040.

The previous prime is 12645011. The next prime is 12645043. The reversal of 12645041 is 14054621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9634816 + 3010225 = 3104^2 + 1735^2 .

It is a cyclic number.

It is not a de Polignac number, because 12645041 - 2¹⁰ = 12644017 is a prime.

Together with 12645043, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12644998 and 12645016.

It is not a weakly prime, because it can be changed into another prime (12645043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6322520 + 6322521.

It is an arithmetic number, because the mean of its divisors is an integer number (6322521).

Almost surely, 2^12645041 is an apocalyptic number.

It is an amenable number.

12645041 is a deficient number, since it is larger than the sum of its proper divisors (1).

12645041 is an equidigital number, since it uses as much as digits as its factorization.

12645041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 12645041 is about 3555.9866422696. The cubic root of 12645041 is about 232.9736196625.

Adding to 12645041 its reverse (14054621), we get a palindrome (26699662).

The spelling of 12645041 in words is "twelve million, six hundred forty-five thousand, forty-one".