82158 has 8 divisors (see below), whose sum is σ = 164328. Its totient is φ = 27384.

The previous prime is 82153. The next prime is 82163. The reversal of 82158 is 85128.

It is an interprime number because it is at equal distance from previous prime (82153) and next prime (82163).

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

82158 is an admirable number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6841 + ... + 6852.

It is an arithmetic number, because the mean of its divisors is an integer number (20541).

2⁸²¹⁵⁸ is an apocalyptic number.

82158 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82164).

82158 is a wasteful number, since it uses less digits than its factorization.

82158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13698.

The product of its digits is 640, while the sum is 24.

The square root of 82158 is about 286.6321684668. The cubic root of 82158 is about 43.4727005353.

Subtracting from 82158 its product of digits (640), we obtain a palindrome (81518).

The spelling of 82158 in words is "eighty-two thousand, one hundred fifty-eight".