82111135 has 4 divisors (see below), whose sum is σ = 98533368. Its totient is φ = 65688904.

The previous prime is 82111109. The next prime is 82111147. The reversal of 82111135 is 53111128.

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 82111135 - 2¹⁹ = 81586847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8211109 + ... + 8211118.

It is an arithmetic number, because the mean of its divisors is an integer number (24633342).

Almost surely, 2^82111135 is an apocalyptic number.

82111135 is a deficient number, since it is larger than the sum of its proper divisors (16422233).

82111135 is a wasteful number, since it uses less digits than its factorization.

82111135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16422232.

The product of its digits is 240, while the sum is 22.

The square root of 82111135 is about 9061.5194641958. The cubic root of 82111135 is about 434.6443298734.

The spelling of 82111135 in words is "eighty-two million, one hundred eleven thousand, one hundred thirty-five".