189013 has 4 divisors (see below), whose sum is σ = 206208. Its totient is φ = 171820.

The previous prime is 189011. The next prime is 189017. The reversal of 189013 is 310981.

189013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 189013 - 2¹ = 189011 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189011) 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, 8581 + ... + 8602.

It is an arithmetic number, because the mean of its divisors is an integer number (51552).

2¹⁸⁹⁰¹³ is an apocalyptic number.

It is an amenable number.

189013 is a deficient number, since it is larger than the sum of its proper divisors (17195).

189013 is a wasteful number, since it uses less digits than its factorization.

189013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17194.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 189013 is about 434.7562535490. The cubic root of 189013 is about 57.3892512258.

Adding to 189013 its reverse (310981), we get a palindrome (499994).

The spelling of 189013 in words is "one hundred eighty-nine thousand, thirteen".