194491 has 4 divisors (see below), whose sum is σ = 212184. Its totient is φ = 176800.

The previous prime is 194483. The next prime is 194507.

194491 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 194491 - 2³ = 194483 is a prime.

It is a Duffinian number.

194491 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (194431) 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, 8830 + ... + 8851.

It is an arithmetic number, because the mean of its divisors is an integer number (53046).

2¹⁹⁴⁴⁹¹ is an apocalyptic number.

194491 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

194491 is a deficient number, since it is larger than the sum of its proper divisors (17693).

194491 is a wasteful number, since it uses less digits than its factorization.

194491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17692.

The product of its digits is 1296, while the sum is 28.

The square root of 194491 is about 441.0113377227. The cubic root of 194491 is about 57.9384007130.

The spelling of 194491 in words is "one hundred ninety-four thousand, four hundred ninety-one".