12544423 has 2 divisors, whose sum is σ = 12544424. Its totient is φ = 12544422.

The previous prime is 12544409. The next prime is 12544447. The reversal of 12544423 is 32444521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12544423 - 2⁹ = 12543911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12544523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6272211 + 6272212.

It is an arithmetic number, because the mean of its divisors is an integer number (6272212).

Almost surely, 2^12544423 is an apocalyptic number.

12544423 is a deficient number, since it is larger than the sum of its proper divisors (1).

12544423 is an equidigital number, since it uses as much as digits as its factorization.

12544423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840, while the sum is 25.

The square root of 12544423 is about 3541.8106951106. The cubic root of 12544423 is about 232.3540410440.

Adding to 12544423 its reverse (32444521), we get a palindrome (44988944).

The spelling of 12544423 in words is "twelve million, five hundred forty-four thousand, four hundred twenty-three".