1446643249 has 2 divisors, whose sum is σ = 1446643250. Its totient is φ = 1446643248.

The previous prime is 1446643217. The next prime is 1446643399. The reversal of 1446643249 is 9423466441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1415640625 + 31002624 = 37625^2 + 5568^2 .

It is a cyclic number.

It is not a de Polignac number, because 1446643249 - 2⁵ = 1446643217 is a prime.

It is not a weakly prime, because it can be changed into another prime (1446653249) 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, 723321624 + 723321625.

It is an arithmetic number, because the mean of its divisors is an integer number (723321625).

Almost surely, 2^1446643249 is an apocalyptic number.

It is an amenable number.

1446643249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1446643249 is an equidigital number, since it uses as much as digits as its factorization.

1446643249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 43.

The square root of 1446643249 is about 38034.7636906028. The cubic root of 1446643249 is about 1130.9771090118.

The spelling of 1446643249 in words is "one billion, four hundred forty-six million, six hundred forty-three thousand, two hundred forty-nine".