243027133 has 2 divisors, whose sum is σ = 243027134. Its totient is φ = 243027132.

The previous prime is 243027097. The next prime is 243027149. The reversal of 243027133 is 331720342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215590489 + 27436644 = 14683^2 + 5238^2 .

It is a cyclic number.

It is not a de Polignac number, because 243027133 - 2¹⁷ = 242896061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243027098 and 243027107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243027173) 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, 121513566 + 121513567.

It is an arithmetic number, because the mean of its divisors is an integer number (121513567).

Almost surely, 2^243027133 is an apocalyptic number.

It is an amenable number.

243027133 is a deficient number, since it is larger than the sum of its proper divisors (1).

243027133 is an equidigital number, since it uses as much as digits as its factorization.

243027133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 243027133 is about 15589.3275352082. The cubic root of 243027133 is about 624.0483719419.

Adding to 243027133 its reverse (331720342), we get a palindrome (574747475).

The spelling of 243027133 in words is "two hundred forty-three million, twenty-seven thousand, one hundred thirty-three".