Pass upstream build number to downstream build jenkins

Question

I have two pipeline projects in Jenkins.

pipeline 1

pipeline {          
    agent any
    parameters {
        string(name: 'PERSON', defaultValue: 'Mr Jenkins', description: 'Who should I say hello to?')
    }
    stages {            
        stage('Build') {            
            steps {         
                echo 'pipeline-triggers-upstream-job1 executed'         
            }           
        }           
    }           
}

pipeline two

pipeline {          
    agent any           
    triggers {
        upstream(upstreamProjects: 'triggers_upstream_job2',            
        threshold: hudson.model.Result.SUCCESS)//UNSTABLE, FAILURE, NOT_BUILT, ABORTED
    }           
    stages {            
        stage('Build') {            
            steps {         
                echo 'pipeline-triggers-upstream executed'
                echo "Hello ${params.PERSON}"
                echo "${env.BUILD_NUMBER}"
            }           
        }           
    }           
}

**Here I want to get the build number of pipeline 1 job in pipeline 2 ** From my research, I found a plugin Parameterized Trigger for this. But am confused to use it.