159271976261 has 2 divisors, whose sum is σ = 159271976262. Its totient is φ = 159271976260.

The previous prime is 159271976257. The next prime is 159271976287. The reversal of 159271976261 is 162679172951.

It is a happy number.

159271976261 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., 159046225636 + 225750625 = 398806^2 + 15025^2 .

It is a cyclic number.

It is not a de Polignac number, because 159271976261 - 2² = 159271976257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 159271976197 and 159271976206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159271916261) 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, 79635988130 + 79635988131.

It is an arithmetic number, because the mean of its divisors is an integer number (79635988131).

Almost surely, 2^159271976261 is an apocalyptic number.

It is an amenable number.

159271976261 is a deficient number, since it is larger than the sum of its proper divisors (1).

159271976261 is an equidigital number, since it uses as much as digits as its factorization.

159271976261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2857680, while the sum is 56.

The spelling of 159271976261 in words is "one hundred fifty-nine billion, two hundred seventy-one million, nine hundred seventy-six thousand, two hundred sixty-one".