243300041 has 2 divisors, whose sum is σ = 243300042. Its totient is φ = 243300040.

The previous prime is 243300037. The next prime is 243300047. The reversal of 243300041 is 140003342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214183225 + 29116816 = 14635^2 + 5396^2 .

It is a cyclic number.

It is not a de Polignac number, because 243300041 - 2² = 243300037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243299992 and 243300019.

It is not a weakly prime, because it can be changed into another prime (243300047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121650020 + 121650021.

It is an arithmetic number, because the mean of its divisors is an integer number (121650021).

Almost surely, 2^243300041 is an apocalyptic number.

It is an amenable number.

243300041 is a deficient number, since it is larger than the sum of its proper divisors (1).

243300041 is an equidigital number, since it uses as much as digits as its factorization.

243300041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 243300041 is about 15598.0781187940. The cubic root of 243300041 is about 624.2818768480.

Adding to 243300041 its reverse (140003342), we get a palindrome (383303383).

The spelling of 243300041 in words is "two hundred forty-three million, three hundred thousand, forty-one".