81043795 has 12 divisors (see below), whose sum is σ = 113130864. Its totient is φ = 55572720.

The previous prime is 81043741. The next prime is 81043819. The reversal of 81043795 is 59734018.

It is not a de Polignac number, because 81043795 - 2¹⁵ = 81011027 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165151 + ... + 165640.

It is an arithmetic number, because the mean of its divisors is an integer number (9427572).

Almost surely, 2^81043795 is an apocalyptic number.

81043795 is a deficient number, since it is larger than the sum of its proper divisors (32087069).

81043795 is a wasteful number, since it uses less digits than its factorization.

81043795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330810 (or 330803 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 81043795 is about 9002.4327267689. The cubic root of 81043795 is about 432.7528364498.

The spelling of 81043795 in words is "eighty-one million, forty-three thousand, seven hundred ninety-five".