243140333 has 2 divisors, whose sum is σ = 243140334. Its totient is φ = 243140332.

The previous prime is 243140279. The next prime is 243140363. The reversal of 243140333 is 333041342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 151708489 + 91431844 = 12317^2 + 9562^2 .

It is a cyclic number.

It is not a de Polignac number, because 243140333 - 2²⁶ = 176031469 is a prime.

It is equal to p_13324163 and since 243140333 and 13324163 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 243140299 and 243140308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243140363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121570166 + 121570167.

It is an arithmetic number, because the mean of its divisors is an integer number (121570167).

Almost surely, 2^243140333 is an apocalyptic number.

It is an amenable number.

243140333 is a deficient number, since it is larger than the sum of its proper divisors (1).

243140333 is an equidigital number, since it uses as much as digits as its factorization.

243140333 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 243140333 is about 15592.9578015205. The cubic root of 243140333 is about 624.1452490676.

Adding to 243140333 its reverse (333041342), we get a palindrome (576181675).

The spelling of 243140333 in words is "two hundred forty-three million, one hundred forty thousand, three hundred thirty-three".