81082059 has 8 divisors (see below), whose sum is σ = 111031440. Its totient is φ = 52593696.

The previous prime is 81082033. The next prime is 81082073. The reversal of 81082059 is 95028018.

It is a happy number.

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

It is not a de Polignac number, because 81082059 - 2²⁴ = 64304843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (81082459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365124 + ... + 365345.

It is an arithmetic number, because the mean of its divisors is an integer number (13878930).

Almost surely, 2^81082059 is an apocalyptic number.

81082059 is a deficient number, since it is larger than the sum of its proper divisors (29949381).

81082059 is a wasteful number, since it uses less digits than its factorization.

81082059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730509.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 81082059 is about 9004.5576793089. The cubic root of 81082059 is about 432.8209323445.

The spelling of 81082059 in words is "eighty-one million, eighty-two thousand, fifty-nine".