Yes that is quite high, possibly multiples or more likely you are further along then you think??
hCG levels in weeks from LMP (gestational age)* :
3 weeks LMP: 5 – 50 mIU/ml.
4 weeks LMP: 5 – 426 mIU/ml.
5 weeks LMP: 18 – 7,340 mIU/ml.
6 weeks LMP: 1,080 – 56,500 mIU/ml.
7 – 8 weeks LMP: 7, 650 – 229,000 mIU/ml.
9 – 12 weeks LMP: 25,700 – 288,000 mIU/ml.
13 – 16 weeks LMP: 13,300 – 254,000 mIU/ml.