12445541 has 2 divisors, whose sum is σ = 12445542. Its totient is φ = 12445540.

The previous prime is 12445529. The next prime is 12445549. The reversal of 12445541 is 14554421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6300100 + 6145441 = 2510^2 + 2479^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12445541 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12445541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12445549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6222770 + 6222771.

It is an arithmetic number, because the mean of its divisors is an integer number (6222771).

Almost surely, 2^12445541 is an apocalyptic number.

It is an amenable number.

12445541 is a deficient number, since it is larger than the sum of its proper divisors (1).

12445541 is an equidigital number, since it uses as much as digits as its factorization.

12445541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3200, while the sum is 26.

The square root of 12445541 is about 3527.8238334701. The cubic root of 12445541 is about 231.7419159883.

Adding to 12445541 its reverse (14554421), we get a palindrome (26999962).

The spelling of 12445541 in words is "twelve million, four hundred forty-five thousand, five hundred forty-one".