194065 has 8 divisors (see below), whose sum is σ = 239400. Its totient is φ = 150912.

The previous prime is 194057. The next prime is 194069. The reversal of 194065 is 560491.

194065 = 311² + 312².

194065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 97344 + 96721 = 312^2 + 311^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 194065 - 2³ = 194057 is a prime.

It is a super-2 number, since 2×194065² = 75322448450, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 340 + ... + 709.

It is an arithmetic number, because the mean of its divisors is an integer number (29925).

2¹⁹⁴⁰⁶⁵ is an apocalyptic number.

194065 is the 312-nd centered square number.

It is an amenable number.

194065 is a deficient number, since it is larger than the sum of its proper divisors (45335).

194065 is a wasteful number, since it uses less digits than its factorization.

194065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 194065 is about 440.5280921803. The cubic root of 194065 is about 57.8960683324.

The spelling of 194065 in words is "one hundred ninety-four thousand, sixty-five".