82586139 has 16 divisors (see below), whose sum is σ = 114723840. Its totient is φ = 52786080.

The previous prime is 82586099. The next prime is 82586159. The reversal of 82586139 is 93168528.

It is not a de Polignac number, because 82586139 - 2⁷ = 82586011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82586139.

It is not an unprimeable number, because it can be changed into a prime (82586159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6064 + ... + 14210.

It is an arithmetic number, because the mean of its divisors is an integer number (7170240).

Almost surely, 2^82586139 is an apocalyptic number.

82586139 is a deficient number, since it is larger than the sum of its proper divisors (32137701).

82586139 is a wasteful number, since it uses less digits than its factorization.

82586139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8290.

The product of its digits is 103680, while the sum is 42.

The square root of 82586139 is about 9087.6916210884. The cubic root of 82586139 is about 435.4808423141.

The spelling of 82586139 in words is "eighty-two million, five hundred eighty-six thousand, one hundred thirty-nine".