81080095 has 4 divisors (see below), whose sum is σ = 97296120. Its totient is φ = 64864072.

The previous prime is 81080081. The next prime is 81080107. The reversal of 81080095 is 59008018.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 81080095 - 2⁵ = 81080063 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8108005 + ... + 8108014.

It is an arithmetic number, because the mean of its divisors is an integer number (24324030).

Almost surely, 2^81080095 is an apocalyptic number.

81080095 is a deficient number, since it is larger than the sum of its proper divisors (16216025).

81080095 is a wasteful number, since it uses less digits than its factorization.

81080095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16216024.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 81080095 is about 9004.4486227642. The cubic root of 81080095 is about 432.8174376660.

The spelling of 81080095 in words is "eighty-one million, eighty thousand, ninety-five".