243234113 has 4 divisors (see below), whose sum is σ = 257542020. Its totient is φ = 228926208.

The previous prime is 243234097. The next prime is 243234151. The reversal of 243234113 is 311432342.

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

It can be written as a sum of positive squares in 2 ways, for example, as 139051264 + 104182849 = 11792^2 + 10207^2 .

It is a cyclic number.

It is not a de Polignac number, because 243234113 - 2⁴ = 243234097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243231113) 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, 7153928 + ... + 7153961.

It is an arithmetic number, because the mean of its divisors is an integer number (64385505).

Almost surely, 2^243234113 is an apocalyptic number.

It is an amenable number.

243234113 is a deficient number, since it is larger than the sum of its proper divisors (14307907).

243234113 is a wasteful number, since it uses less digits than its factorization.

243234113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14307906.

The product of its digits is 1728, while the sum is 23.

The square root of 243234113 is about 15595.9646383287. The cubic root of 243234113 is about 624.2254836890.

Adding to 243234113 its reverse (311432342), we get a palindrome (554666455).

The spelling of 243234113 in words is "two hundred forty-three million, two hundred thirty-four thousand, one hundred thirteen".