82168143 has 16 divisors (see below), whose sum is σ = 111436896. Its totient is φ = 53844480.

The previous prime is 82168133. The next prime is 82168169. The reversal of 82168143 is 34186128.

It is not a de Polignac number, because 82168143 - 2⁴ = 82168127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82168133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99673 + ... + 100493.

It is an arithmetic number, because the mean of its divisors is an integer number (6964806).

Almost surely, 2^82168143 is an apocalyptic number.

82168143 is a deficient number, since it is larger than the sum of its proper divisors (29268753).

82168143 is a wasteful number, since it uses less digits than its factorization.

82168143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354.

The product of its digits is 9216, while the sum is 33.

The square root of 82168143 is about 9064.6645277142. The cubic root of 82168143 is about 434.7448946825.

The spelling of 82168143 in words is "eighty-two million, one hundred sixty-eight thousand, one hundred forty-three".