450530123 has 2 divisors, whose sum is σ = 450530124. Its totient is φ = 450530122.

The previous prime is 450530111. The next prime is 450530149. The reversal of 450530123 is 321035054.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450530123 is a prime.

It is not a weakly prime, because it can be changed into another prime (450530153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225265061 + 225265062.

It is an arithmetic number, because the mean of its divisors is an integer number (225265062).

Almost surely, 2^450530123 is an apocalyptic number.

450530123 is a deficient number, since it is larger than the sum of its proper divisors (1).

450530123 is an equidigital number, since it uses as much as digits as its factorization.

450530123 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 450530123 is about 21225.6948767290. The cubic root of 450530123 is about 766.6102315316.

Adding to 450530123 its reverse (321035054), we get a palindrome (771565177).

The spelling of 450530123 in words is "four hundred fifty million, five hundred thirty thousand, one hundred twenty-three".