195686163 has 24 divisors (see below), whose sum is σ = 293587008. Its totient is φ = 125505072.

The previous prime is 195686143. The next prime is 195686189. The reversal of 195686163 is 361686591.

It is not a de Polignac number, because 195686163 - 2⁵ = 195686131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (195686143) 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 in 23 ways as a sum of consecutive naturals, for example, 22156 + ... + 29702.

It is an arithmetic number, because the mean of its divisors is an integer number (12232792).

Almost surely, 2^195686163 is an apocalyptic number.

195686163 is a deficient number, since it is larger than the sum of its proper divisors (97900845).

195686163 is a wasteful number, since it uses less digits than its factorization.

195686163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7663 (or 7660 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 195686163 is about 13988.7870453446. The cubic root of 195686163 is about 580.5683716961.

The spelling of 195686163 in words is "one hundred ninety-five million, six hundred eighty-six thousand, one hundred sixty-three".