195171161 has 8 divisors (see below), whose sum is σ = 197218560. Its totient is φ = 193134672.

The previous prime is 195171157. The next prime is 195171167. The reversal of 195171161 is 161171591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 195171161 - 2² = 195171157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195171167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36050 + ... + 41108.

It is an arithmetic number, because the mean of its divisors is an integer number (24652320).

Almost surely, 2^195171161 is an apocalyptic number.

It is an amenable number.

195171161 is a deficient number, since it is larger than the sum of its proper divisors (2047399).

195171161 is a wasteful number, since it uses less digits than its factorization.

195171161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5455.

The product of its digits is 1890, while the sum is 32.

The square root of 195171161 is about 13970.3672464256. The cubic root of 195171161 is about 580.0586157565.

The spelling of 195171161 in words is "one hundred ninety-five million, one hundred seventy-one thousand, one hundred sixty-one".