450320249 has 2 divisors, whose sum is σ = 450320250. Its totient is φ = 450320248.

The previous prime is 450320237. The next prime is 450320267. The reversal of 450320249 is 942023054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 359785024 + 90535225 = 18968^2 + 9515^2 .

It is a cyclic number.

It is not a de Polignac number, because 450320249 - 2¹⁶ = 450254713 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (450320219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225160124 + 225160125.

It is an arithmetic number, because the mean of its divisors is an integer number (225160125).

Almost surely, 2^450320249 is an apocalyptic number.

It is an amenable number.

450320249 is a deficient number, since it is larger than the sum of its proper divisors (1).

450320249 is an equidigital number, since it uses as much as digits as its factorization.

450320249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 450320249 is about 21220.7504344215. The cubic root of 450320249 is about 766.4911743461.

The spelling of 450320249 in words is "four hundred fifty million, three hundred twenty thousand, two hundred forty-nine".