import math
from decimal import *
getcontext().prec = 40

n = int(input())

s, t = 1, int(2e9)

def f(x):
    return (Decimal(x) * Decimal(x + 1) / Decimal(2))

while(s <= t):
    x = (s + t) // 2
    if f(x) == n:
        print("YES")
        print(x)
        break
    elif f(x) > n:
        t = x - 1
    else:
        s = x + 1
else:
    print("NO")