194881 has 4 divisors (see below), whose sum is σ = 198612. Its totient is φ = 191152.

The previous prime is 194869. The next prime is 194891. The reversal of 194881 is 188491.

194881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 148225 + 46656 = 385^2 + 216^2 .

It is a cyclic number.

It is not a de Polignac number, because 194881 - 2¹¹ = 192833 is a prime.

It is a super-2 number, since 2×194881² = 75957208322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1786 + ... + 1891.

It is an arithmetic number, because the mean of its divisors is an integer number (49653).

2¹⁹⁴⁸⁸¹ is an apocalyptic number.

It is an amenable number.

194881 is a deficient number, since it is larger than the sum of its proper divisors (3731).

194881 is an equidigital number, since it uses as much as digits as its factorization.

194881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3730.

The product of its digits is 2304, while the sum is 31.

The square root of 194881 is about 441.4532817864. The cubic root of 194881 is about 57.9771015435.

It can be divided in two parts, 19 and 4881, that added together give a square (4900 = 70²).

The spelling of 194881 in words is "one hundred ninety-four thousand, eight hundred eighty-one".