12245641 has 2 divisors, whose sum is σ = 12245642. Its totient is φ = 12245640.

The previous prime is 12245621. The next prime is 12245663. The reversal of 12245641 is 14654221.

It is a happy number.

12245641 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10055241 + 2190400 = 3171^2 + 1480^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12245641 is a prime.

It is not a weakly prime, because it can be changed into another prime (12245621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6122820 + 6122821.

It is an arithmetic number, because the mean of its divisors is an integer number (6122821).

Almost surely, 2^12245641 is an apocalyptic number.

It is an amenable number.

12245641 is a deficient number, since it is larger than the sum of its proper divisors (1).

12245641 is an equidigital number, since it uses as much as digits as its factorization.

12245641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1920, while the sum is 25.

The square root of 12245641 is about 3499.3772303083. The cubic root of 12245641 is about 230.4944686492.

Adding to 12245641 its reverse (14654221), we get a palindrome (26899862).

The spelling of 12245641 in words is "twelve million, two hundred forty-five thousand, six hundred forty-one".