n=int(input())
def f(x):
    return x*(x+1)//2

l,r=0,2*10**9+1
while l+1!=r:
    x=(l+r)//2
    if n<=f(x):
        r=x
    else:
        l=x

if f(r)==n:
    print("YES")
    print(r)
else:
    print("NO")