#include<bits/stdc++.h>
using namespace std;
typedef long long ll;

signed main(){
    ios::sync_with_stdio(false);
	cin.tie(0);
 
    ll n;
    cin>>n;
    long long low=-1,up=2e9+7,mid;
    while(up-low>1){
        mid=(up+low)/2;
        if(mid*(mid+1)<=n*2){
            low=mid;
        }
        else{
            up=mid;
        }
    }

    if(low*(low+1)==2*n){
        cout<<"YES"<<endl;
        cout<<low<<endl;
    }
    else cout<<"NO"<<endl;
}