82168135 has 16 divisors (see below), whose sum is σ = 116324352. Its totient is φ = 54525600.

The previous prime is 82168133. The next prime is 82168169. The reversal of 82168135 is 53186128.

It is not a de Polignac number, because 82168135 - 2¹ = 82168133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82168135.

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, 36781 + ... + 38950.

It is an arithmetic number, because the mean of its divisors is an integer number (7270272).

Almost surely, 2^82168135 is an apocalyptic number.

82168135 is a deficient number, since it is larger than the sum of its proper divisors (34156217).

82168135 is a wasteful number, since it uses less digits than its factorization.

82168135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75774.

The product of its digits is 11520, while the sum is 34.

The square root of 82168135 is about 9064.6640864403. The cubic root of 82168135 is about 434.7448805734.

The spelling of 82168135 in words is "eighty-two million, one hundred sixty-eight thousand, one hundred thirty-five".