8105111 has 4 divisors (see below), whose sum is σ = 9262992. Its totient is φ = 6947232.

The previous prime is 8105099. The next prime is 8105129. The reversal of 8105111 is 1115018.

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 8105111 - 2⁶ = 8105047 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 8105111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8105711) 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, 578930 + ... + 578943.

It is an arithmetic number, because the mean of its divisors is an integer number (2315748).

Almost surely, 2^8105111 is an apocalyptic number.

8105111 is a deficient number, since it is larger than the sum of its proper divisors (1157881).

8105111 is a wasteful number, since it uses less digits than its factorization.

8105111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157880.

The product of its (nonzero) digits is 40, while the sum is 17.

The square root of 8105111 is about 2846.9476637269. The cubic root of 8105111 is about 200.8721165361.

The spelling of 8105111 in words is "eight million, one hundred five thousand, one hundred eleven".