195996169 has 2 divisors, whose sum is σ = 195996170. Its totient is φ = 195996168.

The previous prime is 195996161. The next prime is 195996187. The reversal of 195996169 is 961699591.

195996169 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., 195636169 + 360000 = 13987^2 + 600^2 .

It is a cyclic number.

It is not a de Polignac number, because 195996169 - 2³ = 195996161 is a prime.

It is a super-2 number, since 2×195996169² = 76828996525353122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (195996161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97998084 + 97998085.

It is an arithmetic number, because the mean of its divisors is an integer number (97998085).

Almost surely, 2^195996169 is an apocalyptic number.

It is an amenable number.

195996169 is a deficient number, since it is larger than the sum of its proper divisors (1).

195996169 is an equidigital number, since it uses as much as digits as its factorization.

195996169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1180980, while the sum is 55.

The square root of 195996169 is about 13999.8631779028. The cubic root of 195996169 is about 580.8747887300.

The spelling of 195996169 in words is "one hundred ninety-five million, nine hundred ninety-six thousand, one hundred sixty-nine".