127666159 has 2 divisors, whose sum is σ = 127666160. Its totient is φ = 127666158.

The previous prime is 127666151. The next prime is 127666163. The reversal of 127666159 is 951666721.

It is a strong prime.

It is an emirp because it is prime and its reverse (951666721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 127666159 - 2³ = 127666151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127666151) 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, 63833079 + 63833080.

It is an arithmetic number, because the mean of its divisors is an integer number (63833080).

Almost surely, 2^127666159 is an apocalyptic number.

127666159 is a deficient number, since it is larger than the sum of its proper divisors (1).

127666159 is an equidigital number, since it uses as much as digits as its factorization.

127666159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 43.

The square root of 127666159 is about 11298.9450392503. The cubic root of 127666159 is about 503.5298996394.

The spelling of 127666159 in words is "one hundred twenty-seven million, six hundred sixty-six thousand, one hundred fifty-nine".