243643112 has 16 divisors (see below), whose sum is σ = 466551360. Its totient is φ = 119229424.

The previous prime is 243643093. The next prime is 243643139. The reversal of 243643112 is 211346342.

243643112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323618 + ... + 324369.

It is an arithmetic number, because the mean of its divisors is an integer number (29159460).

Almost surely, 2^243643112 is an apocalyptic number.

It is an amenable number.

243643112 is a deficient number, since it is larger than the sum of its proper divisors (222908248).

243643112 is a wasteful number, since it uses less digits than its factorization.

243643112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648040 (or 648036 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 243643112 is about 15609.0714650167. The cubic root of 243643112 is about 624.5751668657.

Adding to 243643112 its reverse (211346342), we get a palindrome (454989454).

The spelling of 243643112 in words is "two hundred forty-three million, six hundred forty-three thousand, one hundred twelve".