81095 has 12 divisors (see below), whose sum is σ = 113544. Its totient is φ = 55440.

The previous prime is 81083. The next prime is 81097. The reversal of 81095 is 59018.

It is not a de Polignac number, because 81095 - 2⁶ = 81031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 81095.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 81095.

It is not an unprimeable number, because it can be changed into a prime (81097) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80 + ... + 410.

It is an arithmetic number, because the mean of its divisors is an integer number (9462).

2⁸¹⁰⁹⁵ is an apocalyptic number.

81095 is a deficient number, since it is larger than the sum of its proper divisors (32449).

81095 is a wasteful number, since it uses less digits than its factorization.

81095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 343 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 81095 is about 284.7718384953. The cubic root of 81095 is about 43.2843957733.

Adding to 81095 its sum of digits (23), we get a palindrome (81118).

The spelling of 81095 in words is "eighty-one thousand, ninety-five".