MOSCOW, Feb 6 (Reuters) - Russia's Finance Ministry said on Monday that the country's National Wealth Fund (NWF) stood at $155.3 billion as of Feb. 1, equivalent to 7.2% of gross domestic product and up from $148.4 billion a month earlier.

The ministry said it spent 38.5 billion roubles ($543 million) of Chinese yuan and gold from the NWF in January to cover the government's budget deficit during the month.

Russia's NWF is a rainy day fund built up from years of Russia's profits on oil and gas exports.

(Reporting by Reuters)