195947 has 4 divisors (see below), whose sum is σ = 206280. Its totient is φ = 185616.

The previous prime is 195931. The next prime is 195967. The reversal of 195947 is 749591.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 749591 = 419 ⋅1789.

It is a cyclic number.

It is not a de Polignac number, because 195947 - 2⁴ = 195931 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 195947.

It is not an unprimeable number, because it can be changed into a prime (195907) 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 3 ways as a sum of consecutive naturals, for example, 5138 + ... + 5175.

It is an arithmetic number, because the mean of its divisors is an integer number (51570).

2¹⁹⁵⁹⁴⁷ is an apocalyptic number.

195947 is a deficient number, since it is larger than the sum of its proper divisors (10333).

195947 is a wasteful number, since it uses less digits than its factorization.

195947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10332.

The product of its digits is 11340, while the sum is 35.

The square root of 195947 is about 442.6590109780. The cubic root of 195947 is about 58.0826210534.

The spelling of 195947 in words is "one hundred ninety-five thousand, nine hundred forty-seven".