195873169 has 2 divisors, whose sum is σ = 195873170. Its totient is φ = 195873168.

The previous prime is 195873151. The next prime is 195873173. The reversal of 195873169 is 961378591.

195873169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160351569 + 35521600 = 12663^2 + 5960^2 .

It is an emirp because it is prime and its reverse (961378591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 195873169 - 2²⁷ = 61655441 is a prime.

It is a super-2 number, since 2×195873169² = 76732596668205122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (195873149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97936584 + 97936585.

It is an arithmetic number, because the mean of its divisors is an integer number (97936585).

Almost surely, 2^195873169 is an apocalyptic number.

It is an amenable number.

195873169 is a deficient number, since it is larger than the sum of its proper divisors (1).

195873169 is an equidigital number, since it uses as much as digits as its factorization.

195873169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 49.

The square root of 195873169 is about 13995.4695884061. The cubic root of 195873169 is about 580.7532514051.

The spelling of 195873169 in words is "one hundred ninety-five million, eight hundred seventy-three thousand, one hundred sixty-nine".