194563 has 4 divisors (see below), whose sum is σ = 198288. Its totient is φ = 190840.

The previous prime is 194543. The next prime is 194569. The reversal of 194563 is 365491.

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-194563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194569) 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, 1783 + ... + 1888.

It is an arithmetic number, because the mean of its divisors is an integer number (49572).

2¹⁹⁴⁵⁶³ is an apocalyptic number.

194563 is a deficient number, since it is larger than the sum of its proper divisors (3725).

194563 is an equidigital number, since it uses as much as digits as its factorization.

194563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3724.

The product of its digits is 3240, while the sum is 28.

The square root of 194563 is about 441.0929607237. The cubic root of 194563 is about 57.9455493732.

It can be divided in two parts, 194 and 563, that added together give a palindrome (757).

The spelling of 194563 in words is "one hundred ninety-four thousand, five hundred sixty-three".