2243275649 has 2 divisors, whose sum is σ = 2243275650. Its totient is φ = 2243275648.

The previous prime is 2243275633. The next prime is 2243275663. The reversal of 2243275649 is 9465723422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1702387600 + 540888049 = 41260^2 + 23257^2 .

It is a cyclic number.

It is not a de Polignac number, because 2243275649 - 2⁴ = 2243275633 is a prime.

It is not a weakly prime, because it can be changed into another prime (2243275249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121637824 + 1121637825.

It is an arithmetic number, because the mean of its divisors is an integer number (1121637825).

Almost surely, 2^2243275649 is an apocalyptic number.

It is an amenable number.

2243275649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243275649 is an equidigital number, since it uses as much as digits as its factorization.

2243275649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 44.

The square root of 2243275649 is about 47363.2309814269. The cubic root of 2243275649 is about 1309.0640030272.

The spelling of 2243275649 in words is "two billion, two hundred forty-three million, two hundred seventy-five thousand, six hundred forty-nine".