82142186 has 32 divisors (see below), whose sum is σ = 143475840. Its totient is φ = 34546176.

The previous prime is 82142161. The next prime is 82142197. The reversal of 82142186 is 68124128.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216545 + ... + 216923.

It is an arithmetic number, because the mean of its divisors is an integer number (4483620).

Almost surely, 2^82142186 is an apocalyptic number.

82142186 is a deficient number, since it is larger than the sum of its proper divisors (61333654).

82142186 is a wasteful number, since it uses less digits than its factorization.

82142186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638.

The product of its digits is 6144, while the sum is 32.

The square root of 82142186 is about 9063.2326462471. The cubic root of 82142186 is about 434.6991110762.

It can be divided in two parts, 82142 and 186, that added together give a palindrome (82328).

The spelling of 82142186 in words is "eighty-two million, one hundred forty-two thousand, one hundred eighty-six".