Get type of a variable in Kotlin

How can I find the variable type in Kotlin? In Java there is instanceof, but Kotlin does not exist:

val properties = System.getProperties() // Which type?

You can use the is operator to check whether an object is of a specific type:

val number = 5
if(number is Int) {
   println("number is of type Int")
}

You can also get the type as String using reflection:

println("${number::class.simpleName}")    // "Int"
println("${number::class.qualifiedName}") // "kotlin.Int"

Please note:

> On the Java platform, the runtime component required for using the > reflection features is distributed as a separate JAR file > (kotlin-reflect.jar). This is done to reduce the required size of the > runtime library for applications that do not use reflection features. > If you do use reflection, please make sure that the .jar file is added > to the classpath of your project.

Source: https://kotlinlang.org/docs/reference/reflection.html#bound-class-references-since-11

You can use like this:

val value="value"
println(value::class.java.typeName)

you can get the class name with properties::class.simpleName