194885 has 4 divisors (see below), whose sum is σ = 233868. Its totient is φ = 155904.

The previous prime is 194869. The next prime is 194891. The reversal of 194885 is 588491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 588491 = 109 ⋅5399.

It can be written as a sum of positive squares in 2 ways, for example, as 36481 + 158404 = 191^2 + 398^2 .

It is a cyclic number.

It is not a de Polignac number, because 194885 - 2⁴ = 194869 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19484 + ... + 19493.

It is an arithmetic number, because the mean of its divisors is an integer number (58467).

2¹⁹⁴⁸⁸⁵ is an apocalyptic number.

It is an amenable number.

194885 is a deficient number, since it is larger than the sum of its proper divisors (38983).

194885 is an equidigital number, since it uses as much as digits as its factorization.

194885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38982.

The product of its digits is 11520, while the sum is 35.

The square root of 194885 is about 441.4578122539. The cubic root of 194885 is about 57.9774982075.

The spelling of 194885 in words is "one hundred ninety-four thousand, eight hundred eighty-five".