243343255 has 4 divisors (see below), whose sum is σ = 292011912. Its totient is φ = 194674600.

The previous prime is 243343231. The next prime is 243343259. The reversal of 243343255 is 552343342.

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

It is a de Polignac number, because none of the positive numbers 2^k-243343255 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243343259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24334321 + ... + 24334330.

It is an arithmetic number, because the mean of its divisors is an integer number (73002978).

Almost surely, 2^243343255 is an apocalyptic number.

243343255 is a deficient number, since it is larger than the sum of its proper divisors (48668657).

243343255 is an equidigital number, since it uses as much as digits as its factorization.

243343255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48668656.

The product of its digits is 43200, while the sum is 31.

The square root of 243343255 is about 15599.4632920495. The cubic root of 243343255 is about 624.3188354936.

Adding to 243343255 its reverse (552343342), we get a palindrome (795686597).

The spelling of 243343255 in words is "two hundred forty-three million, three hundred forty-three thousand, two hundred fifty-five".