194985 has 24 divisors (see below), whose sum is σ = 386880. Its totient is φ = 88992.

The previous prime is 194981. The next prime is 194989. The reversal of 194985 is 589491.

It is an interprime number because it is at equal distance from previous prime (194981) and next prime (194989).

It is not a de Polignac number, because 194985 - 2² = 194981 is a prime.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 194985.

It is not an unprimeable number, because it can be changed into a prime (194981) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 6 + ... + 624.

It is an arithmetic number, because the mean of its divisors is an integer number (16120).

2¹⁹⁴⁹⁸⁵ is an apocalyptic number.

194985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

194985 is a deficient number, since it is larger than the sum of its proper divisors (191895).

194985 is a wasteful number, since it uses less digits than its factorization.

194985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637 (or 634 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 194985 is about 441.5710588342. The cubic root of 194985 is about 57.9874130435.

It can be divided in two parts, 19498 and 5, that added together give a triangular number (19503 = T₁₉₇).

The spelling of 194985 in words is "one hundred ninety-four thousand, nine hundred eighty-five".