194189 has 4 divisors (see below), whose sum is σ = 202656. Its totient is φ = 185724.

The previous prime is 194179. The next prime is 194197. The reversal of 194189 is 981491.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 194189 - 2¹² = 190093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194119) 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 3 ways as a sum of consecutive naturals, for example, 4199 + ... + 4244.

It is an arithmetic number, because the mean of its divisors is an integer number (50664).

2¹⁹⁴¹⁸⁹ is an apocalyptic number.

It is an amenable number.

194189 is a deficient number, since it is larger than the sum of its proper divisors (8467).

194189 is an equidigital number, since it uses as much as digits as its factorization.

194189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8466.

The product of its digits is 2592, while the sum is 32.

The square root of 194189 is about 440.6688098788. The cubic root of 194189 is about 57.9083968202.

It can be divided in two parts, 194 and 189, that added together give a palindrome (383).

The spelling of 194189 in words is "one hundred ninety-four thousand, one hundred eighty-nine".