243248233 has 2 divisors, whose sum is σ = 243248234. Its totient is φ = 243248232.

The previous prime is 243248231. The next prime is 243248237. The reversal of 243248233 is 332842342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124612569 + 118635664 = 11163^2 + 10892^2 .

It is a cyclic number.

It is not a de Polignac number, because 243248233 - 2¹ = 243248231 is a prime.

Together with 243248231, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 243248195 and 243248204.

It is not a weakly prime, because it can be changed into another prime (243248231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121624116 + 121624117.

It is an arithmetic number, because the mean of its divisors is an integer number (121624117).

Almost surely, 2^243248233 is an apocalyptic number.

It is an amenable number.

243248233 is a deficient number, since it is larger than the sum of its proper divisors (1).

243248233 is an equidigital number, since it uses as much as digits as its factorization.

243248233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 31.

The square root of 243248233 is about 15596.4173129601. The cubic root of 243248233 is about 624.2375624406.

The spelling of 243248233 in words is "two hundred forty-three million, two hundred forty-eight thousand, two hundred thirty-three".