450331213 has 2 divisors, whose sum is σ = 450331214. Its totient is φ = 450331212.

The previous prime is 450331201. The next prime is 450331223. The reversal of 450331213 is 312133054.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 261048649 + 189282564 = 16157^2 + 13758^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450331213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (450331223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225165606 + 225165607.

It is an arithmetic number, because the mean of its divisors is an integer number (225165607).

Almost surely, 2^450331213 is an apocalyptic number.

It is an amenable number.

450331213 is a deficient number, since it is larger than the sum of its proper divisors (1).

450331213 is an equidigital number, since it uses as much as digits as its factorization.

450331213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 450331213 is about 21221.0087649009. The cubic root of 450331213 is about 766.4973949125.

Adding to 450331213 its reverse (312133054), we get a palindrome (762464267).

The spelling of 450331213 in words is "four hundred fifty million, three hundred thirty-one thousand, two hundred thirteen".