450220201 has 4 divisors (see below), whose sum is σ = 451640772. Its totient is φ = 448799632.

The previous prime is 450220151. The next prime is 450220229. The reversal of 450220201 is 102022054.

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 57229225 + 392990976 = 7565^2 + 19824^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450220201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450220261) 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, 709810 + ... + 710443.

It is an arithmetic number, because the mean of its divisors is an integer number (112910193).

Almost surely, 2^450220201 is an apocalyptic number.

It is an amenable number.

450220201 is a deficient number, since it is larger than the sum of its proper divisors (1420571).

450220201 is a wasteful number, since it uses less digits than its factorization.

450220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420570.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 450220201 is about 21218.3929881601. The cubic root of 450220201 is about 766.4344061617.

Adding to 450220201 its reverse (102022054), we get a palindrome (552242255).

The spelling of 450220201 in words is "four hundred fifty million, two hundred twenty thousand, two hundred one".