2182118 has 4 divisors (see below), whose sum is σ = 3273180. Its totient is φ = 1091058.

The previous prime is 2182109. The next prime is 2182129. The reversal of 2182118 is 8112812.

It is a happy number.

2182118 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2182093 and 2182102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545528 + ... + 545531.

It is an arithmetic number, because the mean of its divisors is an integer number (818295).

2^2182118 is an apocalyptic number.

2182118 is a deficient number, since it is larger than the sum of its proper divisors (1091062).

2182118 is a wasteful number, since it uses less digits than its factorization.

2182118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091061.

The product of its digits is 256, while the sum is 23.

The square root of 2182118 is about 1477.1993772000. The cubic root of 2182118 is about 129.7058041518.

The spelling of 2182118 in words is "two million, one hundred eighty-two thousand, one hundred eighteen".