195855 has 16 divisors (see below), whose sum is σ = 342144. Its totient is φ = 94880.

The previous prime is 195817. The next prime is 195863. The reversal of 195855 is 558591.

It is not a de Polignac number, because 195855 - 2⁶ = 195791 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 195855.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 429 + ... + 758.

It is an arithmetic number, because the mean of its divisors is an integer number (21384).

2¹⁹⁵⁸⁵⁵ is an apocalyptic number.

195855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

195855 is a deficient number, since it is larger than the sum of its proper divisors (146289).

195855 is a wasteful number, since it uses less digits than its factorization.

195855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206.

The product of its digits is 9000, while the sum is 33.

The square root of 195855 is about 442.5550813176. Note that the first 3 decimals coincide. The cubic root of 195855 is about 58.0735294152.

The spelling of 195855 in words is "one hundred ninety-five thousand, eight hundred fifty-five".