194873 has 12 divisors (see below), whose sum is σ = 234612. Its totient is φ = 161280.

The previous prime is 194869. The next prime is 194891. The reversal of 194873 is 378491.

It can be written as a sum of positive squares in 2 ways, for example, as 41209 + 153664 = 203^2 + 392^2 .

It is not a de Polignac number, because 194873 - 2² = 194869 is a prime.

It is a super-2 number, since 2×194873² = 75950972258, which contains 22 as substring.

It is an Ulam number.

194873 is a modest number, since divided by 873 gives 194 as remainder.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (194813) 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 11 ways as a sum of consecutive naturals, for example, 1961 + ... + 2057.

It is an arithmetic number, because the mean of its divisors is an integer number (19551).

2¹⁹⁴⁸⁷³ is an apocalyptic number.

It is an amenable number.

194873 is a deficient number, since it is larger than the sum of its proper divisors (39739).

194873 is an equidigital number, since it uses as much as digits as its factorization.

194873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 145 counting only the distinct ones).

The product of its digits is 6048, while the sum is 32.

The square root of 194873 is about 441.4442207120. Note that the first 3 decimals coincide. The cubic root of 194873 is about 57.9763081993.

The spelling of 194873 in words is "one hundred ninety-four thousand, eight hundred seventy-three".