import sys
readline=sys.stdin.readline

def Bisect_Int(ok,ng,is_ok):
    while abs(ok-ng)>1:
        mid=(ok+ng)//2
        if is_ok(mid):
            ok=mid
        else:
            ng=mid
    return ok

N=int(readline())
def is_ok(ans):
    return ans*(ans+1)//2>=N
ans=Bisect_Int(1<<31,-1,is_ok)
if ans*(ans+1)//2!=N:
    print("NO")
else:
    print("YES")
    print(ans)