82068165 has 12 divisors (see below), whose sum is σ = 142251564. Its totient is φ = 43769664.

The previous prime is 82068149. The next prime is 82068169. The reversal of 82068165 is 56186028.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17715681 + 64352484 = 4209^2 + 8022^2 .

It is not a de Polignac number, because 82068165 - 2⁴ = 82068149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82068169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 911824 + ... + 911913.

It is an arithmetic number, because the mean of its divisors is an integer number (11854297).

Almost surely, 2^82068165 is an apocalyptic number.

It is an amenable number.

82068165 is a deficient number, since it is larger than the sum of its proper divisors (60183399).

82068165 is a wasteful number, since it uses less digits than its factorization.

82068165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823748 (or 1823745 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 82068165 is about 9059.1481387601. The cubic root of 82068165 is about 434.5684979913.

The spelling of 82068165 in words is "eighty-two million, sixty-eight thousand, one hundred sixty-five".