82068145 has 4 divisors (see below), whose sum is σ = 98481780. Its totient is φ = 65654512.

The previous prime is 82068127. The next prime is 82068149. The reversal of 82068145 is 54186028.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10699441 + 71368704 = 3271^2 + 8448^2 .

It is a cyclic number.

It is not a de Polignac number, because 82068145 - 2⁵ = 82068113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82068145.

It is not an unprimeable number, because it can be changed into a prime (82068149) 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 3 ways as a sum of consecutive naturals, for example, 8206810 + ... + 8206819.

It is an arithmetic number, because the mean of its divisors is an integer number (24620445).

Almost surely, 2^82068145 is an apocalyptic number.

It is an amenable number.

82068145 is a deficient number, since it is larger than the sum of its proper divisors (16413635).

82068145 is a wasteful number, since it uses less digits than its factorization.

82068145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16413634.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 82068145 is about 9059.1470349035. The cubic root of 82068145 is about 434.5684626898.

The spelling of 82068145 in words is "eighty-two million, sixty-eight thousand, one hundred forty-five".