450391302169 has 2 divisors, whose sum is σ = 450391302170. Its totient is φ = 450391302168.

The previous prime is 450391302107. The next prime is 450391302287. The reversal of 450391302169 is 961203193054.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 375753062169 + 74638240000 = 612987^2 + 273200^2 .

It is a cyclic number.

It is not a de Polignac number, because 450391302169 - 2¹⁵ = 450391269401 is a prime.

It is a super-2 number, since 2×450391302169² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (450391302769) 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, 225195651084 + 225195651085.

It is an arithmetic number, because the mean of its divisors is an integer number (225195651085).

Almost surely, 2^450391302169 is an apocalyptic number.

It is an amenable number.

450391302169 is a deficient number, since it is larger than the sum of its proper divisors (1).

450391302169 is an equidigital number, since it uses as much as digits as its factorization.

450391302169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 174960, while the sum is 43.

The spelling of 450391302169 in words is "four hundred fifty billion, three hundred ninety-one million, three hundred two thousand, one hundred sixty-nine".