450451013 has 4 divisors (see below), whose sum is σ = 450888108. Its totient is φ = 450013920.

The previous prime is 450451003. The next prime is 450451019. The reversal of 450451013 is 310154054.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 365497924 + 84953089 = 19118^2 + 9217^2 .

It is a cyclic number.

It is not a de Polignac number, because 450451013 - 2¹⁴ = 450434629 is a prime.

It is a super-2 number, since 2×450451013² = 405812230225452338, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 450451013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450451019) 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, 216998 + ... + 219063.

It is an arithmetic number, because the mean of its divisors is an integer number (112722027).

Almost surely, 2^450451013 is an apocalyptic number.

It is an amenable number.

450451013 is a deficient number, since it is larger than the sum of its proper divisors (437095).

450451013 is a wasteful number, since it uses less digits than its factorization.

450451013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437094.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 450451013 is about 21223.8312516850. The cubic root of 450451013 is about 766.5653584052.

The spelling of 450451013 in words is "four hundred fifty million, four hundred fifty-one thousand, thirteen".