243235233 has 24 divisors (see below), whose sum is σ = 358217600. Its totient is φ = 159011424.

The previous prime is 243235183. The next prime is 243235241. The reversal of 243235233 is 332532342.

It is not a de Polignac number, because 243235233 - 2⁹ = 243234721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243235197 and 243235206.

It is not an unprimeable number, because it can be changed into a prime (243235273) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110538 + ... + 112716.

Almost surely, 2^243235233 is an apocalyptic number.

It is an amenable number.

243235233 is a deficient number, since it is larger than the sum of its proper divisors (114982367).

243235233 is a wasteful number, since it uses less digits than its factorization.

243235233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2421 (or 2418 counting only the distinct ones).

The product of its digits is 12960, while the sum is 27.

The square root of 243235233 is about 15596.0005450115. Note that the first 3 decimals coincide. The cubic root of 243235233 is about 624.2264417940.

Adding to 243235233 its reverse (332532342), we get a palindrome (575767575).

The spelling of 243235233 in words is "two hundred forty-three million, two hundred thirty-five thousand, two hundred thirty-three".