The binary on the back of the tattoo robot is 10011101 which translates to 157, significant because it is not just a prime number, but a balanced prime. A balanced prime number is when the number is the average of the previous prime number and the following prime number.
The tattoo robot is also an Epson printing bot as seen on the front (upside-down), presumably one that uses 157 ink.
Bender borrows $10,000 from the Robot Mafia at an interest rate of 10,000%, which means he would owe them $1,000,000.