200543443 has 4 divisors (see below), whose sum is σ = 205207288. Its totient is φ = 195879600.

The previous prime is 200543429. The next prime is 200543449. The reversal of 200543443 is 344345002.

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

It is a cyclic number.

It is not a de Polignac number, because 200543443 - 2⁵ = 200543411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200543449) 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, 2331858 + ... + 2331943.

It is an arithmetic number, because the mean of its divisors is an integer number (51301822).

Almost surely, 2^200543443 is an apocalyptic number.

200543443 is a deficient number, since it is larger than the sum of its proper divisors (4663845).

200543443 is an equidigital number, since it uses as much as digits as its factorization.

200543443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4663844.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 200543443 is about 14161.3362010793. The cubic root of 200543443 is about 585.3327476055.

Adding to 200543443 its reverse (344345002), we get a palindrome (544888445).

The spelling of 200543443 in words is "two hundred million, five hundred forty-three thousand, four hundred forty-three".