20134 has 4 divisors (see below), whose sum is σ = 30204. Its totient is φ = 10066.

The previous prime is 20129. The next prime is 20143. The reversal of 20134 is 43102.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5032 + ... + 5035.

It is an arithmetic number, because the mean of its divisors is an integer number (7551).

2²⁰¹³⁴ is an apocalyptic number.

20134 is a deficient number, since it is larger than the sum of its proper divisors (10070).

20134 is a wasteful number, since it uses less digits than its factorization.

20134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10069.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 20134 is about 141.8943268774. The cubic root of 20134 is about 27.2046632720.

Adding to 20134 its reverse (43102), we get a palindrome (63236).

The spelling of 20134 in words is "twenty thousand, one hundred thirty-four".