82147 has 8 divisors (see below), whose sum is σ = 90720. Its totient is φ = 73920.

The previous prime is 82141. The next prime is 82153. The reversal of 82147 is 74128.

It is an interprime number because it is at equal distance from previous prime (82141) and next prime (82153).

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

It is a cyclic number.

It is not a de Polignac number, because 82147 - 2³ = 82139 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (82141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 879 + ... + 967.

It is an arithmetic number, because the mean of its divisors is an integer number (11340).

2⁸²¹⁴⁷ is an apocalyptic number.

82147 is a deficient number, since it is larger than the sum of its proper divisors (8573).

82147 is a wasteful number, since it uses less digits than its factorization.

82147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173.

The product of its digits is 448, while the sum is 22.

The square root of 82147 is about 286.6129794688. The cubic root of 82147 is about 43.4707602858.

It can be divided in two parts, 821 and 47, that added together give a palindrome (868).

The spelling of 82147 in words is "eighty-two thousand, one hundred forty-seven".