81459795 has 8 divisors (see below), whose sum is σ = 130335696. Its totient is φ = 43445216.

The previous prime is 81459773. The next prime is 81459809. The reversal of 81459795 is 59795418.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 81459795 - 2⁷ = 81459667 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2715312 + ... + 2715341.

It is an arithmetic number, because the mean of its divisors is an integer number (16291962).

Almost surely, 2^81459795 is an apocalyptic number.

81459795 is a deficient number, since it is larger than the sum of its proper divisors (48875901).

81459795 is a wasteful number, since it uses less digits than its factorization.

81459795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5430661.

The product of its digits is 453600, while the sum is 48.

The square root of 81459795 is about 9025.5080189428. The cubic root of 81459795 is about 433.4920171633.

The spelling of 81459795 in words is "eighty-one million, four hundred fifty-nine thousand, seven hundred ninety-five".