Comparing egypt government to mesopotamia government

Mesopotamia region was in fact same as Egypt one culture in Mespotomais Sumerians started it and Akkadians shaped the later centuries were continuation of that factor diferent is that Mespotamia was decentralised city states and Egypt was centralized theocratic moanrchy, in Egypt pharaoh was lininv god in Mespotamai rulers were rather archpreists