mod = 1000000007
eps = 10**-9


def main():
    import sys
    input = sys.stdin.readline

    N = int(input())

    ok = 1
    ng = 10**18
    mid = (ok+ng)//2
    while ng - ok > 1:
        if mid * (mid+1) // 2 <= N:
            ok = mid
        else:
            ng = mid
        mid = (ok+ng)//2
    if ok * (ok+1) // 2 == N:
        print("YES")
        print(ok)
    else:
        print("NO")


if __name__ == '__main__':
    main()