194159 has 4 divisors (see below), whose sum is σ = 221904. Its totient is φ = 166416.

The previous prime is 194149. The next prime is 194167. The reversal of 194159 is 951491.

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 194159 - 2¹² = 190063 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13862 + ... + 13875.

It is an arithmetic number, because the mean of its divisors is an integer number (55476).

2¹⁹⁴¹⁵⁹ is an apocalyptic number.

194159 is a deficient number, since it is larger than the sum of its proper divisors (27745).

194159 is an equidigital number, since it uses as much as digits as its factorization.

194159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27744.

The product of its digits is 1620, while the sum is 29.

The square root of 194159 is about 440.6347693952. The cubic root of 194159 is about 57.9054146030.

It can be divided in two parts, 194 and 159, that added together give a palindrome (353).

The spelling of 194159 in words is "one hundred ninety-four thousand, one hundred fifty-nine".