191227155359 has 2 divisors, whose sum is σ = 191227155360. Its totient is φ = 191227155358.

The previous prime is 191227155293. The next prime is 191227155397. The reversal of 191227155359 is 953551722191.

191227155359 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-191227155359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (191227155659) 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, 95613577679 + 95613577680.

It is an arithmetic number, because the mean of its divisors is an integer number (95613577680).

Almost surely, 2^191227155359 is an apocalyptic number.

191227155359 is a deficient number, since it is larger than the sum of its proper divisors (1).

191227155359 is an equidigital number, since it uses as much as digits as its factorization.

191227155359 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 850500, while the sum is 50.

The spelling of 191227155359 in words is "one hundred ninety-one billion, two hundred twenty-seven million, one hundred fifty-five thousand, three hundred fifty-nine".