82105183 has 4 divisors (see below), whose sum is σ = 84324280. Its totient is φ = 79886088.

The previous prime is 82105169. The next prime is 82105187. The reversal of 82105183 is 38150128.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82105183 - 2¹⁷ = 81974111 is a prime.

It is a super-2 number, since 2×82105183² = 13482522150926978, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82105187) 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, 1109493 + ... + 1109566.

It is an arithmetic number, because the mean of its divisors is an integer number (21081070).

Almost surely, 2^82105183 is an apocalyptic number.

82105183 is a deficient number, since it is larger than the sum of its proper divisors (2219097).

82105183 is a wasteful number, since it uses less digits than its factorization.

82105183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2219096.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 82105183 is about 9061.1910365029. The cubic root of 82105183 is about 434.6338275805.

The spelling of 82105183 in words is "eighty-two million, one hundred five thousand, one hundred eighty-three".