450305213 has 2 divisors, whose sum is σ = 450305214. Its totient is φ = 450305212.

The previous prime is 450305203. The next prime is 450305221. The reversal of 450305213 is 312503054.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 373339684 + 76965529 = 19322^2 + 8773^2 .

It is a cyclic number.

It is not a de Polignac number, because 450305213 - 2⁸ = 450304957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (450305203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225152606 + 225152607.

It is an arithmetic number, because the mean of its divisors is an integer number (225152607).

Almost surely, 2^450305213 is an apocalyptic number.

It is an amenable number.

450305213 is a deficient number, since it is larger than the sum of its proper divisors (1).

450305213 is an equidigital number, since it uses as much as digits as its factorization.

450305213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 450305213 is about 21220.3961555858. The cubic root of 450305213 is about 766.4826433139.

Adding to 450305213 its reverse (312503054), we get a palindrome (762808267).

The spelling of 450305213 in words is "four hundred fifty million, three hundred five thousand, two hundred thirteen".