1218112 has 28 divisors (see below), whose sum is σ = 2763520. Its totient is φ = 521856.

The previous prime is 1218089. The next prime is 1218121. The reversal of 1218112 is 2118121.

It is a tau number, because it is divible by the number of its divisors (28).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 912 + ... + 1807.

2^1218112 is an apocalyptic number.

It is an amenable number.

1218112 is an abundant number, since it is smaller than the sum of its proper divisors (1545408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1218112 is an equidigital number, since it uses as much as digits as its factorization.

1218112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2738 (or 2728 counting only the distinct ones).

The product of its digits is 32, while the sum is 16.

The square root of 1218112 is about 1103.6811133656. The cubic root of 1218112 is about 106.7978247721.

Subtracting 1218112 from its reverse (2118121), we obtain a palindrome (900009).

The spelling of 1218112 in words is "one million, two hundred eighteen thousand, one hundred twelve".