200453809 has 4 divisors (see below), whose sum is σ = 209169216. Its totient is φ = 191738404.

The previous prime is 200453807. The next prime is 200453821. The reversal of 200453809 is 908354002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 200453809 - 2¹ = 200453807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200453807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4357669 + ... + 4357714.

It is an arithmetic number, because the mean of its divisors is an integer number (52292304).

Almost surely, 2^200453809 is an apocalyptic number.

It is an amenable number.

200453809 is a deficient number, since it is larger than the sum of its proper divisors (8715407).

200453809 is an equidigital number, since it uses as much as digits as its factorization.

200453809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8715406.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 200453809 is about 14158.1711036419. The cubic root of 200453809 is about 585.2455287079.

The spelling of 200453809 in words is "two hundred million, four hundred fifty-three thousand, eight hundred nine".