#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll,ll> P;
const ll MOD=1000000007;
int main(void){
    unsigned long long n;
    cin>>n;
    n*=2;
    unsigned long long l=0,r=10000000000;
    while(r-l>1){
        unsigned long long m=(l+r)/2;
        if(m*(m+1)<n){
            l=m;
        }else if(m*(m+1)>n){
            r=m;
        }else{
            cout<<"YES"<<endl;
            cout<<m<<endl;
            return 0;
        }
    }
    if(l*(l+1)==n){
        cout<<"YES"<<endl;
        cout<<l<<endl;
        return 0;
    }
    if(r*(r+1)==n){
        cout<<"YES"<<endl;
        cout<<r<<endl;
        return 0;
    }
    cout<<"NO"<<endl;
    
}