194791 has 4 divisors (see below), whose sum is σ = 199584. Its totient is φ = 190000.

The previous prime is 194771. The next prime is 194809. The reversal of 194791 is 197491.

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 194791 - 2¹¹ = 192743 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 (194771) 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, 2335 + ... + 2416.

It is an arithmetic number, because the mean of its divisors is an integer number (49896).

2¹⁹⁴⁷⁹¹ is an apocalyptic number.

194791 is a deficient number, since it is larger than the sum of its proper divisors (4793).

194791 is an equidigital number, since it uses as much as digits as its factorization.

194791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4792.

The product of its digits is 2268, while the sum is 31.

The square root of 194791 is about 441.3513339733. The cubic root of 194791 is about 57.9681751686.

The spelling of 194791 in words is "one hundred ninety-four thousand, seven hundred ninety-one".