189533 has 4 divisors (see below), whose sum is σ = 200700. Its totient is φ = 178368.

The previous prime is 189529. The next prime is 189547. The reversal of 189533 is 335981.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 335981 = 269 ⋅1249.

It can be written as a sum of positive squares in 2 ways, for example, as 103684 + 85849 = 322^2 + 293^2 .

It is a cyclic number.

It is not a de Polignac number, because 189533 - 2² = 189529 is a prime.

It is a d-powerful number, because it can be written as 1 + 8³ + 5⁵ + 9⁴ + 3⁷ + 3¹¹ .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 189496 and 189505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189523) 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, 5558 + ... + 5591.

It is an arithmetic number, because the mean of its divisors is an integer number (50175).

2¹⁸⁹⁵³³ is an apocalyptic number.

It is an amenable number.

189533 is a deficient number, since it is larger than the sum of its proper divisors (11167).

189533 is a wasteful number, since it uses less digits than its factorization.

189533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11166.

The product of its digits is 3240, while the sum is 29.

The square root of 189533 is about 435.3538790455. The cubic root of 189533 is about 57.4418315343.

The spelling of 189533 in words is "one hundred eighty-nine thousand, five hundred thirty-three".