Sakurako is from the Japanese 桜子 (Sakurako — sakura cherry blossom + ko child — cherry blossom child). Sakurako is one of the Japanese feminine names — central to traditional Japanese heritage. Japanese feminine name reflecting Japanese natural-symbolic heritage.
Sakurako does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
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In Pythagorean numerology the letters of Sakurako reduce to 7, The Seeker. This is a traditional interpretive system, not a factual claim about the name.