1244313449 has 2 divisors, whose sum is σ = 1244313450. Its totient is φ = 1244313448.

The previous prime is 1244313431. The next prime is 1244313461. The reversal of 1244313449 is 9443134421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1032465424 + 211848025 = 32132^2 + 14555^2 .

It is a cyclic number.

It is not a de Polignac number, because 1244313449 - 2⁸ = 1244313193 is a prime.

It is not a weakly prime, because it can be changed into another prime (1244313479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622156724 + 622156725.

It is an arithmetic number, because the mean of its divisors is an integer number (622156725).

Almost surely, 2^1244313449 is an apocalyptic number.

It is an amenable number.

1244313449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244313449 is an equidigital number, since it uses as much as digits as its factorization.

1244313449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 35.

The square root of 1244313449 is about 35274.8274127599. The cubic root of 1244313449 is about 1075.5813546320.

The spelling of 1244313449 in words is "one billion, two hundred forty-four million, three hundred thirteen thousand, four hundred forty-nine".