195992271 has 8 divisors (see below), whose sum is σ = 290358960. Its totient is φ = 130661496.

The previous prime is 195992263. The next prime is 195992273. The reversal of 195992271 is 172299591.

It is not a de Polignac number, because 195992271 - 2³ = 195992263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195992273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3629460 + ... + 3629513.

It is an arithmetic number, because the mean of its divisors is an integer number (36294870).

Almost surely, 2^195992271 is an apocalyptic number.

195992271 is a deficient number, since it is larger than the sum of its proper divisors (94366689).

195992271 is an equidigital number, since it uses as much as digits as its factorization.

195992271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7258982 (or 7258976 counting only the distinct ones).

The product of its digits is 102060, while the sum is 45.

The square root of 195992271 is about 13999.7239615644. The cubic root of 195992271 is about 580.8709378640.

The spelling of 195992271 in words is "one hundred ninety-five million, nine hundred ninety-two thousand, two hundred seventy-one".