195685 has 8 divisors (see below), whose sum is σ = 268416. Its totient is φ = 134160.

The previous prime is 195677. The next prime is 195691. The reversal of 195685 is 586591.

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

It is not a de Polignac number, because 195685 - 2³ = 195677 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 195685.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2761 + ... + 2830.

It is an arithmetic number, because the mean of its divisors is an integer number (33552).

2¹⁹⁵⁶⁸⁵ is an apocalyptic number.

It is an amenable number.

195685 is a deficient number, since it is larger than the sum of its proper divisors (72731).

195685 is an equidigital number, since it uses as much as digits as its factorization.

195685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5603.

The product of its digits is 10800, while the sum is 34.

The square root of 195685 is about 442.3629731341. The cubic root of 195685 is about 58.0567221551.

The spelling of 195685 in words is "one hundred ninety-five thousand, six hundred eighty-five".