200542243 has 4 divisors (see below), whose sum is σ = 218773368. Its totient is φ = 182311120.

The previous prime is 200542241. The next prime is 200542253. The reversal of 200542243 is 342245002.

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 200542243 - 2¹ = 200542241 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (200542241) 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, 9115546 + ... + 9115567.

It is an arithmetic number, because the mean of its divisors is an integer number (54693342).

Almost surely, 2^200542243 is an apocalyptic number.

200542243 is a deficient number, since it is larger than the sum of its proper divisors (18231125).

200542243 is a wasteful number, since it uses less digits than its factorization.

200542243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18231124.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 200542243 is about 14161.2938321327. The cubic root of 200542243 is about 585.3315801100.

Adding to 200542243 its reverse (342245002), we get a palindrome (542787245).

The spelling of 200542243 in words is "two hundred million, five hundred forty-two thousand, two hundred forty-three".