200020453 has 16 divisors (see below), whose sum is σ = 219829680. Its totient is φ = 181149696.

The previous prime is 200020451. The next prime is 200020517. The reversal of 200020453 is 354020002.

It can be written as a sum of positive squares in 8 ways, for example, as 22118209 + 177902244 = 4703^2 + 13338^2 .

It is a cyclic number.

It is not a de Polignac number, because 200020453 - 2¹ = 200020451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200020451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213001 + ... + 213937.

It is an arithmetic number, because the mean of its divisors is an integer number (13739355).

Almost surely, 2^200020453 is an apocalyptic number.

It is an amenable number.

200020453 is a deficient number, since it is larger than the sum of its proper divisors (19809227).

200020453 is a wasteful number, since it uses less digits than its factorization.

200020453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 200020453 is about 14142.8587279941. The cubic root of 200020453 is about 584.8234819413.

Adding to 200020453 its reverse (354020002), we get a palindrome (554040455).

The spelling of 200020453 in words is "two hundred million, twenty thousand, four hundred fifty-three".