2111894 has 4 divisors (see below), whose sum is σ = 3167844. Its totient is φ = 1055946.

The previous prime is 2111873. The next prime is 2111897. The reversal of 2111894 is 4981112.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527972 + ... + 527975.

It is an arithmetic number, because the mean of its divisors is an integer number (791961).

2^2111894 is an apocalyptic number.

2111894 is a deficient number, since it is larger than the sum of its proper divisors (1055950).

2111894 is a wasteful number, since it uses less digits than its factorization.

2111894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055949.

The product of its digits is 576, while the sum is 26.

The square root of 2111894 is about 1453.2357000845. The cubic root of 2111894 is about 128.2992267079.

It can be divided in two parts, 21118 and 94, that added together give a palindrome (21212).

The spelling of 2111894 in words is "two million, one hundred eleven thousand, eight hundred ninety-four".