12744223 has 2 divisors, whose sum is σ = 12744224. Its totient is φ = 12744222.

The previous prime is 12744209. The next prime is 12744229. The reversal of 12744223 is 32244721.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12744223 - 2²¹ = 10647071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12744229) 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, 6372111 + 6372112.

It is an arithmetic number, because the mean of its divisors is an integer number (6372112).

Almost surely, 2^12744223 is an apocalyptic number.

12744223 is a deficient number, since it is larger than the sum of its proper divisors (1).

12744223 is an equidigital number, since it uses as much as digits as its factorization.

12744223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 25.

The square root of 12744223 is about 3569.9051808136. The cubic root of 12744223 is about 233.5811473710.

Adding to 12744223 its reverse (32244721), we get a palindrome (44988944).

The spelling of 12744223 in words is "twelve million, seven hundred forty-four thousand, two hundred twenty-three".