243314243 has 2 divisors, whose sum is σ = 243314244. Its totient is φ = 243314242.

The previous prime is 243314207. The next prime is 243314273. The reversal of 243314243 is 342413342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243314243 - 2⁶ = 243314179 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (243314273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121657121 + 121657122.

It is an arithmetic number, because the mean of its divisors is an integer number (121657122).

Almost surely, 2^243314243 is an apocalyptic number.

243314243 is a deficient number, since it is larger than the sum of its proper divisors (1).

243314243 is an equidigital number, since it uses as much as digits as its factorization.

243314243 is an evil number, because the sum of its binary digits is even.

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

The square root of 243314243 is about 15598.5333605439. The cubic root of 243314243 is about 624.2940235492.

Adding to 243314243 its reverse (342413342), we get a palindrome (585727585).

Subtracting 243314243 from its reverse (342413342), we obtain a palindrome (99099099).

The spelling of 243314243 in words is "two hundred forty-three million, three hundred fourteen thousand, two hundred forty-three".