1244848013 has 2 divisors, whose sum is σ = 1244848014. Its totient is φ = 1244848012.

The previous prime is 1244847977. The next prime is 1244848019. The reversal of 1244848013 is 3108484421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 983637769 + 261210244 = 31363^2 + 16162^2 .

It is a cyclic number.

It is not a de Polignac number, because 1244848013 - 2¹² = 1244843917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1244848019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622424006 + 622424007.

It is an arithmetic number, because the mean of its divisors is an integer number (622424007).

Almost surely, 2^1244848013 is an apocalyptic number.

It is an amenable number.

1244848013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244848013 is an equidigital number, since it uses as much as digits as its factorization.

1244848013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24576, while the sum is 35.

The square root of 1244848013 is about 35282.4037304717. The cubic root of 1244848013 is about 1075.7353578309.

The spelling of 1244848013 in words is "one billion, two hundred forty-four million, eight hundred forty-eight thousand, thirteen".