194605 has 4 divisors (see below), whose sum is σ = 233532. Its totient is φ = 155680.

The previous prime is 194591. The next prime is 194609. The reversal of 194605 is 506491.

194605 is an esthetic number in base 11, because in such base its adjacent digits differ by 1.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19881 + 174724 = 141^2 + 418^2 .

It is not a de Polignac number, because 194605 - 2⁹ = 194093 is a prime.

It is a super-2 number, since 2×194605² = 75742212050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 194605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194609) 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, 19456 + ... + 19465.

It is an arithmetic number, because the mean of its divisors is an integer number (58383).

2¹⁹⁴⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

194605 is a deficient number, since it is larger than the sum of its proper divisors (38927).

194605 is an equidigital number, since it uses as much as digits as its factorization.

194605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38926.

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

The square root of 194605 is about 441.1405671665. The cubic root of 194605 is about 57.9497186105.

It can be divided in two parts, 194 and 605, that multiplied together give a triangular number (117370 = T₄₈₄).

The spelling of 194605 in words is "one hundred ninety-four thousand, six hundred five".