200003243 has 4 divisors (see below), whose sum is σ = 218185368. Its totient is φ = 181821120.

The previous prime is 200003231. The next prime is 200003257. The reversal of 200003243 is 342300002.

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 200003243 - 2⁶ = 200003179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200003213) 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, 9091046 + ... + 9091067.

It is an arithmetic number, because the mean of its divisors is an integer number (54546342).

Almost surely, 2^200003243 is an apocalyptic number.

200003243 is a deficient number, since it is larger than the sum of its proper divisors (18182125).

200003243 is a wasteful number, since it uses less digits than its factorization.

200003243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18182124.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 200003243 is about 14142.2502806307. The cubic root of 200003243 is about 584.8067084887.

Adding to 200003243 its reverse (342300002), we get a palindrome (542303245).

The spelling of 200003243 in words is "two hundred million, three thousand, two hundred forty-three".