450720211 has 2 divisors, whose sum is σ = 450720212. Its totient is φ = 450720210.

The previous prime is 450720163. The next prime is 450720229. The reversal of 450720211 is 112027054.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450720211 is a prime.

It is not a weakly prime, because it can be changed into another prime (450720251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225360105 + 225360106.

It is an arithmetic number, because the mean of its divisors is an integer number (225360106).

Almost surely, 2^450720211 is an apocalyptic number.

450720211 is a deficient number, since it is larger than the sum of its proper divisors (1).

450720211 is an equidigital number, since it uses as much as digits as its factorization.

450720211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 450720211 is about 21230.1721848882. The cubic root of 450720211 is about 766.7180326223.

Adding to 450720211 its reverse (112027054), we get a palindrome (562747265).

The spelling of 450720211 in words is "four hundred fifty million, seven hundred twenty thousand, two hundred eleven".