200405453 has 4 divisors (see below), whose sum is σ = 200443740. Its totient is φ = 200367168.

The previous prime is 200405389. The next prime is 200405461. The reversal of 200405453 is 354504002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 354504002 = 2 ⋅177252001.

It can be written as a sum of positive squares in 2 ways, for example, as 95609284 + 104796169 = 9778^2 + 10237^2 .

It is a cyclic number.

It is not a de Polignac number, because 200405453 - 2⁶ = 200405389 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 (200405473) 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, 9758 + ... + 22271.

It is an arithmetic number, because the mean of its divisors is an integer number (50110935).

Almost surely, 2^200405453 is an apocalyptic number.

It is an amenable number.

200405453 is a deficient number, since it is larger than the sum of its proper divisors (38287).

200405453 is an equidigital number, since it uses as much as digits as its factorization.

200405453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38286.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 200405453 is about 14156.4632941989. The cubic root of 200405453 is about 585.1984648168.

Adding to 200405453 its reverse (354504002), we get a palindrome (554909455).

The spelling of 200405453 in words is "two hundred million, four hundred five thousand, four hundred fifty-three".