243434231 has 8 divisors (see below), whose sum is σ = 254314080. Its totient is φ = 232579072.

The previous prime is 243434201. The next prime is 243434239. The reversal of 243434231 is 132434342.

243434231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243434231 - 2²⁶ = 176325367 is a prime.

It is a super-2 number, since 2×243434231² = 118520449645122722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 243434231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243434239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15671 + ... + 27063.

It is an arithmetic number, because the mean of its divisors is an integer number (31789260).

Almost surely, 2^243434231 is an apocalyptic number.

243434231 is a deficient number, since it is larger than the sum of its proper divisors (10879849).

243434231 is a wasteful number, since it uses less digits than its factorization.

243434231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12345.

The product of its digits is 6912, while the sum is 26.

The square root of 243434231 is about 15602.3790173166. The cubic root of 243434231 is about 624.3966281486.

Adding to 243434231 its reverse (132434342), we get a palindrome (375868573).

The spelling of 243434231 in words is "two hundred forty-three million, four hundred thirty-four thousand, two hundred thirty-one".