243133232 has 20 divisors (see below), whose sum is σ = 471312840. Its totient is φ = 121504128.

The previous prime is 243133213. The next prime is 243133237. The reversal of 243133232 is 232331342.

It is a super-2 number, since 2×243133232² = 118227537005531648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243133198 and 243133207.

It is not an unprimeable number, because it can be changed into a prime (243133237) 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, 56468 + ... + 60620.

It is an arithmetic number, because the mean of its divisors is an integer number (23565642).

Almost surely, 2^243133232 is an apocalyptic number.

It is an amenable number.

243133232 is a deficient number, since it is larger than the sum of its proper divisors (228179608).

243133232 is a wasteful number, since it uses less digits than its factorization.

243133232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7820 (or 7814 counting only the distinct ones).

The product of its digits is 2592, while the sum is 23.

The square root of 243133232 is about 15592.7301009156. The cubic root of 243133232 is about 624.1391728803.

Adding to 243133232 its reverse (232331342), we get a palindrome (475464574).

The spelling of 243133232 in words is "two hundred forty-three million, one hundred thirty-three thousand, two hundred thirty-two".