1244481307 has 2 divisors, whose sum is σ = 1244481308. Its totient is φ = 1244481306.

The previous prime is 1244481289. The next prime is 1244481331. The reversal of 1244481307 is 7031844421.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1244481307 - 2¹¹ = 1244479259 is a prime.

It is not a weakly prime, because it can be changed into another prime (1244488307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622240653 + 622240654.

It is an arithmetic number, because the mean of its divisors is an integer number (622240654).

Almost surely, 2^1244481307 is an apocalyptic number.

1244481307 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244481307 is an equidigital number, since it uses as much as digits as its factorization.

1244481307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 1244481307 is about 35277.2066212732. The cubic root of 1244481307 is about 1075.6297177990.

The spelling of 1244481307 in words is "one billion, two hundred forty-four million, four hundred eighty-one thousand, three hundred seven".