243202201 has 32 divisors (see below), whose sum is σ = 281957760. Its totient is φ = 207820800.

The previous prime is 243202171. The next prime is 243202231. The reversal of 243202201 is 102202342.

It is an interprime number because it is at equal distance from previous prime (243202171) and next prime (243202231).

It is a de Polignac number, because none of the positive numbers 2^k-243202201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243202231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2732565 + ... + 2732653.

It is an arithmetic number, because the mean of its divisors is an integer number (8811180).

Almost surely, 2^243202201 is an apocalyptic number.

It is an amenable number.

243202201 is a deficient number, since it is larger than the sum of its proper divisors (38755559).

243202201 is a wasteful number, since it uses less digits than its factorization.

243202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 243202201 is about 15594.9415196082. The cubic root of 243202201 is about 624.1981833039.

Adding to 243202201 its reverse (102202342), we get a palindrome (345404543).

The spelling of 243202201 in words is "two hundred forty-three million, two hundred two thousand, two hundred one".