194859 has 16 divisors (see below), whose sum is σ = 330240. Its totient is φ = 111240.

The previous prime is 194839. The next prime is 194861. The reversal of 194859 is 958491.

It is not a de Polignac number, because 194859 - 2⁵ = 194827 is a prime.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (194809) 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 15 ways as a sum of consecutive naturals, for example, 327 + ... + 704.

It is an arithmetic number, because the mean of its divisors is an integer number (20640).

2¹⁹⁴⁸⁵⁹ is an apocalyptic number.

194859 is a deficient number, since it is larger than the sum of its proper divisors (135381).

194859 is a wasteful number, since it uses less digits than its factorization.

194859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047 (or 1041 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 194859 is about 441.4283633841. The cubic root of 194859 is about 57.9749197946.

The spelling of 194859 in words is "one hundred ninety-four thousand, eight hundred fifty-nine".