195768871 has 2 divisors, whose sum is σ = 195768872. Its totient is φ = 195768870.

The previous prime is 195768827. The next prime is 195768877. The reversal of 195768871 is 178867591.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 195768871 - 2⁷ = 195768743 is a prime.

It is a super-2 number, since 2×195768871² = 76650901705229282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195768877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97884435 + 97884436.

It is an arithmetic number, because the mean of its divisors is an integer number (97884436).

Almost surely, 2^195768871 is an apocalyptic number.

195768871 is a deficient number, since it is larger than the sum of its proper divisors (1).

195768871 is an equidigital number, since it uses as much as digits as its factorization.

195768871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 846720, while the sum is 52.

The square root of 195768871 is about 13991.7429579020. The cubic root of 195768871 is about 580.6501538121.

The spelling of 195768871 in words is "one hundred ninety-five million, seven hundred sixty-eight thousand, eight hundred seventy-one".