243200201 has 4 divisors (see below), whose sum is σ = 245561472. Its totient is φ = 240838932.

The previous prime is 243200179. The next prime is 243200203. The reversal of 243200201 is 102002342.

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 a de Polignac number, because none of the positive numbers 2^k-243200201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (243200203) 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, 1180481 + ... + 1180686.

It is an arithmetic number, because the mean of its divisors is an integer number (61390368).

Almost surely, 2^243200201 is an apocalyptic number.

It is an amenable number.

243200201 is a deficient number, since it is larger than the sum of its proper divisors (2361271).

243200201 is a wasteful number, since it uses less digits than its factorization.

243200201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2361270.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 243200201 is about 15594.8773961195. The cubic root of 243200201 is about 624.1964722451.

Adding to 243200201 its reverse (102002342), we get a palindrome (345202543).

The spelling of 243200201 in words is "two hundred forty-three million, two hundred thousand, two hundred one".