20193 has 8 divisors (see below), whose sum is σ = 27648.
Its totient is φ = 13104.
The previous prime is 20183. The next prime is 20201. The reversal of 20193 is 39102.
20193 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20193 - 24 = 20177 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (20113) 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, 96 + ... + 222.
It is an arithmetic number, because the mean of its divisors is an integer number (3456).
220193 is an apocalyptic number.
It is an amenable number.
20193 is a deficient number, since it is larger than the sum of its proper divisors (7455).
20193 is a wasteful number, since it uses less digits than its factorization.
20193 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 183.
The product of its (nonzero) digits is 54, while the sum is 15.
The square root of 20193 is about 142.1020759877.
The cubic root of 20193 is about 27.2312105694.
Adding to 20193 its reverse (39102), we get a palindrome (59295).
The spelling of 20193 in words is "twenty thousand, one hundred ninety-three".