1318812 has 48 divisors (see below), whose sum is σ = 3424512. Its totient is φ = 391680.

The previous prime is 1318789. The next prime is 1318829. The reversal of 1318812 is 2188131.

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 in 15 ways as a sum of consecutive naturals, for example, 12753 + ... + 12855.

It is an arithmetic number, because the mean of its divisors is an integer number (71344).

2^1318812 is an apocalyptic number.

1318812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1318812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1712256).

1318812 is an abundant number, since it is smaller than the sum of its proper divisors (2105700).

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

1318812 is a wasteful number, since it uses less digits than its factorization.

1318812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218 (or 216 counting only the distinct ones).

The product of its digits is 384, while the sum is 24.

The square root of 1318812 is about 1148.3954022896. The cubic root of 1318812 is about 109.6632123317.

It can be divided in two parts, 1 and 318812, that added together give a palindrome (318813).

The spelling of 1318812 in words is "one million, three hundred eighteen thousand, eight hundred twelve".