The company is hereby declared to be performing a public function and to be a public body corporate and a political subdivision of the state. Accordingly, the income, including any profit made on the sale thereof from all bonds issued by the company pursuant to Sections 37-145-43 through 37-145-73, shall at all times be exempt from all taxation by the state or any public subdivision thereof. If, after all indebtedness and other obligations of the company are discharged the company is dissolved, its remaining assets shall inure to the benefit of the state.