2105674111 has 4 divisors (see below), whose sum is σ = 2229537312. Its totient is φ = 1981810912.

The previous prime is 2105674091. The next prime is 2105674139. The reversal of 2105674111 is 1114765012.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2105674111 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 2105674111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105674211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61931575 + ... + 61931608.

It is an arithmetic number, because the mean of its divisors is an integer number (557384328).

Almost surely, 2^2105674111 is an apocalyptic number.

2105674111 is a deficient number, since it is larger than the sum of its proper divisors (123863201).

2105674111 is a wasteful number, since it uses less digits than its factorization.

2105674111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123863200.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 2105674111 is about 45887.6248132326. The cubic root of 2105674111 is about 1281.7314846474.

Subtracting from 2105674111 its reverse (1114765012), we obtain a palindrome (990909099).

The spelling of 2105674111 in words is "two billion, one hundred five million, six hundred seventy-four thousand, one hundred eleven".