81088110 has 96 divisors (see below), whose sum is σ = 225358848. Its totient is φ = 20180160.

The previous prime is 81088109. The next prime is 81088123. The reversal of 81088110 is 1188018.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 88555 + ... + 89465.

It is an arithmetic number, because the mean of its divisors is an integer number (2347488).

Almost surely, 2^81088110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 81088110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112679424).

81088110 is an abundant number, since it is smaller than the sum of its proper divisors (144270738).

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

81088110 is a wasteful number, since it uses less digits than its factorization.

81088110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990 (or 987 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 27.

The square root of 81088110 is about 9004.8936695555. The cubic root of 81088110 is about 432.8316989446.

The spelling of 81088110 in words is "eighty-one million, eighty-eight thousand, one hundred ten".