450605641 has 4 divisors (see below), whose sum is σ = 450673300. Its totient is φ = 450537984.

The previous prime is 450605611. The next prime is 450605711. The reversal of 450605641 is 146506054.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 146506054 = 2 ⋅73253027.

It can be written as a sum of positive squares in 2 ways, for example, as 368793616 + 81812025 = 19204^2 + 9045^2 .

It is a cyclic number.

It is not a de Polignac number, because 450605641 - 2⁵ = 450605609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450605611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22596 + ... + 37573.

It is an arithmetic number, because the mean of its divisors is an integer number (112668325).

Almost surely, 2^450605641 is an apocalyptic number.

It is an amenable number.

450605641 is a deficient number, since it is larger than the sum of its proper divisors (67659).

450605641 is an equidigital number, since it uses as much as digits as its factorization.

450605641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67658.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 450605641 is about 21227.4737309931. The cubic root of 450605641 is about 766.6530622875.

The spelling of 450605641 in words is "four hundred fifty million, six hundred five thousand, six hundred forty-one".