81107106 has 16 divisors (see below), whose sum is σ = 163651104. Its totient is φ = 26796224.

The previous prime is 81107099. The next prime is 81107111. The reversal of 81107106 is 60170118.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59136 + ... + 60491.

It is an arithmetic number, because the mean of its divisors is an integer number (10228194).

Almost surely, 2^81107106 is an apocalyptic number.

81107106 is an abundant number, since it is smaller than the sum of its proper divisors (82543998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

81107106 is a wasteful number, since it uses less digits than its factorization.

81107106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119745.

The product of its (nonzero) digits is 336, while the sum is 24.

The square root of 81107106 is about 9005.9483676068. The cubic root of 81107106 is about 432.8654952229.

The spelling of 81107106 in words is "eighty-one million, one hundred seven thousand, one hundred six".