450005321 has 2 divisors, whose sum is σ = 450005322. Its totient is φ = 450005320.

The previous prime is 450005293. The next prime is 450005377. The reversal of 450005321 is 123500054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 410629696 + 39375625 = 20264^2 + 6275^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450005321 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 450005293 and 450005302.

It is not a weakly prime, because it can be changed into another prime (450035321) 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, 225002660 + 225002661.

It is an arithmetic number, because the mean of its divisors is an integer number (225002661).

Almost surely, 2^450005321 is an apocalyptic number.

It is an amenable number.

450005321 is a deficient number, since it is larger than the sum of its proper divisors (1).

450005321 is an equidigital number, since it uses as much as digits as its factorization.

450005321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 450005321 is about 21213.3288523984. The cubic root of 450005321 is about 766.3124527761.

Adding to 450005321 its reverse (123500054), we get a palindrome (573505375).

The spelling of 450005321 in words is "four hundred fifty million, five thousand, three hundred twenty-one".