200206243 has 4 divisors (see below), whose sum is σ = 201481600. Its totient is φ = 198930888.

The previous prime is 200206213. The next prime is 200206273. The reversal of 200206243 is 342602002.

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

It is an interprime number because it is at equal distance from previous prime (200206213) and next prime (200206273).

It is a cyclic number.

It is not a de Polignac number, because 200206243 - 2¹⁷ = 200075171 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 200206243.

It is not an unprimeable number, because it can be changed into a prime (200206213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 637443 + ... + 637756.

It is an arithmetic number, because the mean of its divisors is an integer number (50370400).

Almost surely, 2^200206243 is an apocalyptic number.

200206243 is a deficient number, since it is larger than the sum of its proper divisors (1275357).

200206243 is a wasteful number, since it uses less digits than its factorization.

200206243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275356.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 200206243 is about 14149.4255360421. The cubic root of 200206243 is about 585.0044979809.

Adding to 200206243 its reverse (342602002), we get a palindrome (542808245).

The spelling of 200206243 in words is "two hundred million, two hundred six thousand, two hundred forty-three".