194911 has 2 divisors, whose sum is σ = 194912. Its totient is φ = 194910.

The previous prime is 194899. The next prime is 194917. The reversal of 194911 is 119491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 194911 - 2¹⁵ = 162143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97455 + 97456.

It is an arithmetic number, because the mean of its divisors is an integer number (97456).

2¹⁹⁴⁹¹¹ is an apocalyptic number.

194911 is a deficient number, since it is larger than the sum of its proper divisors (1).

194911 is an equidigital number, since it uses as much as digits as its factorization.

194911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324, while the sum is 25.

The square root of 194911 is about 441.4872591593. The cubic root of 194911 is about 57.9800763911.

The spelling of 194911 in words is "one hundred ninety-four thousand, nine hundred eleven".