81094695 has 16 divisors (see below), whose sum is σ = 141547392. Its totient is φ = 39318560.

The previous prime is 81094661. The next prime is 81094703. The reversal of 81094695 is 59649018.

It is not a de Polignac number, because 81094695 - 2¹⁴ = 81078311 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245577 + ... + 245906.

It is an arithmetic number, because the mean of its divisors is an integer number (8846712).

Almost surely, 2^81094695 is an apocalyptic number.

81094695 is a deficient number, since it is larger than the sum of its proper divisors (60452697).

81094695 is a wasteful number, since it uses less digits than its factorization.

81094695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491502.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 81094695 is about 9005.2592966555. The cubic root of 81094695 is about 432.8434150872.

The spelling of 81094695 in words is "eighty-one million, ninety-four thousand, six hundred ninety-five".