450619121 has 2 divisors, whose sum is σ = 450619122. Its totient is φ = 450619120.

The previous prime is 450619087. The next prime is 450619159. The reversal of 450619121 is 121916054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 434305600 + 16313521 = 20840^2 + 4039^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450619121 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (450619721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225309560 + 225309561.

It is an arithmetic number, because the mean of its divisors is an integer number (225309561).

Almost surely, 2^450619121 is an apocalyptic number.

It is an amenable number.

450619121 is a deficient number, since it is larger than the sum of its proper divisors (1).

450619121 is an equidigital number, since it uses as much as digits as its factorization.

450619121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 450619121 is about 21227.7912416718. The cubic root of 450619121 is about 766.6607070950.

The spelling of 450619121 in words is "four hundred fifty million, six hundred nineteen thousand, one hundred twenty-one".