107

is the integer between.

Math features

 * 107 is an odd number.
 * 107 is the second member of the sequence 10n+7 which is prime. See 10^n + 7 (sequence).
 * 107 is a palindromic number in binary.
 * 107 is a prime number. Therefore, it is a deficient number.
 * 107 is an emirp. Its palindrome, 701, is also prime.