243225272665087 has 2 divisors, whose sum is σ = 243225272665088. Its totient is φ = 243225272665086.

The previous prime is 243225272665057. The next prime is 243225272665139. The reversal of 243225272665087 is 780566272522342.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243225272665087 - 2²⁷ = 243225138447359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243225272665057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121612636332543 + 121612636332544.

It is an arithmetic number, because the mean of its divisors is an integer number (121612636332544).

Almost surely, 2^{243225272665087} is an apocalyptic number.

243225272665087 is a deficient number, since it is larger than the sum of its proper divisors (1).

243225272665087 is an equidigital number, since it uses as much as digits as its factorization.

243225272665087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 135475200, while the sum is 61.

The spelling of 243225272665087 in words is "two hundred forty-three trillion, two hundred twenty-five billion, two hundred seventy-two million, six hundred sixty-five thousand, eighty-seven".