1244435249 has 2 divisors, whose sum is σ = 1244435250. Its totient is φ = 1244435248.

The previous prime is 1244435237. The next prime is 1244435251. The reversal of 1244435249 is 9425344421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1066479649 + 177955600 = 32657^2 + 13340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1244435249 is a prime.

Together with 1244435251, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1244435209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622217624 + 622217625.

It is an arithmetic number, because the mean of its divisors is an integer number (622217625).

Almost surely, 2^1244435249 is an apocalyptic number.

It is an amenable number.

1244435249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244435249 is an equidigital number, since it uses as much as digits as its factorization.

1244435249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 38.

The square root of 1244435249 is about 35276.5538141129. The cubic root of 1244435249 is about 1075.6164480229.

The spelling of 1244435249 in words is "one billion, two hundred forty-four million, four hundred thirty-five thousand, two hundred forty-nine".