243041334157 has 2 divisors, whose sum is σ = 243041334158. Its totient is φ = 243041334156.

The previous prime is 243041334149. The next prime is 243041334191. The reversal of 243041334157 is 751433140342.

243041334157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178532445961 + 64508888196 = 422531^2 + 253986^2 .

It is a cyclic number.

It is not a de Polignac number, because 243041334157 - 2³ = 243041334149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243041334127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121520667078 + 121520667079.

It is an arithmetic number, because the mean of its divisors is an integer number (121520667079).

Almost surely, 2^243041334157 is an apocalyptic number.

It is an amenable number.

243041334157 is a deficient number, since it is larger than the sum of its proper divisors (1).

243041334157 is an equidigital number, since it uses as much as digits as its factorization.

243041334157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 37.

Adding to 243041334157 its reverse (751433140342), we get a palindrome (994474474499).

The spelling of 243041334157 in words is "two hundred forty-three billion, forty-one million, three hundred thirty-four thousand, one hundred fifty-seven".