12424813 has 2 divisors, whose sum is σ = 12424814. Its totient is φ = 12424812.

The previous prime is 12424799. The next prime is 12424829. The reversal of 12424813 is 31842421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12096484 + 328329 = 3478^2 + 573^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12424813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12427813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6212406 + 6212407.

It is an arithmetic number, because the mean of its divisors is an integer number (6212407).

Almost surely, 2^12424813 is an apocalyptic number.

It is an amenable number.

12424813 is a deficient number, since it is larger than the sum of its proper divisors (1).

12424813 is an equidigital number, since it uses as much as digits as its factorization.

12424813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1536, while the sum is 25.

The square root of 12424813 is about 3524.8848208133. The cubic root of 12424813 is about 231.6131894116.

The spelling of 12424813 in words is "twelve million, four hundred twenty-four thousand, eight hundred thirteen".