194039 has 4 divisors (see below), whose sum is σ = 200760. Its totient is φ = 187320.

The previous prime is 194027. The next prime is 194057. The reversal of 194039 is 930491.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194039 is a prime.

It is a super-2 number, since 2×194039² = 75302267042, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 193999 and 194017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194069) 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, 3317 + ... + 3374.

It is an arithmetic number, because the mean of its divisors is an integer number (50190).

2¹⁹⁴⁰³⁹ is an apocalyptic number.

194039 is a deficient number, since it is larger than the sum of its proper divisors (6721).

194039 is an equidigital number, since it uses as much as digits as its factorization.

194039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6720.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 194039 is about 440.4985811555. The cubic root of 194039 is about 57.8934826610.

The spelling of 194039 in words is "one hundred ninety-four thousand, thirty-nine".