82111130 has 16 divisors (see below), whose sum is σ = 149826024. Its totient is φ = 32394240.

The previous prime is 82111109. The next prime is 82111147. The reversal of 82111130 is 3111128.

It can be written as a sum of positive squares in 4 ways, for example, as 81522841 + 588289 = 9029^2 + 767^2 .

It is a junction number, because it is equal to n+sod(n) for n = 82111099 and 82111108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55511 + ... + 56970.

Almost surely, 2^82111130 is an apocalyptic number.

82111130 is a deficient number, since it is larger than the sum of its proper divisors (67714894).

82111130 is a wasteful number, since it uses less digits than its factorization.

82111130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112561.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 82111130 is about 9061.5191883039. The cubic root of 82111130 is about 434.6443210511.

Adding to 82111130 its reverse (3111128), we get a palindrome (85222258).

The spelling of 82111130 in words is "eighty-two million, one hundred eleven thousand, one hundred thirty".