1113812 has 12 divisors (see below), whose sum is σ = 2227680. Its totient is φ = 477336.

The previous prime is 1113809. The next prime is 1113859. The reversal of 1113812 is 2183111.

1113812 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19862 + ... + 19917.

It is an arithmetic number, because the mean of its divisors is an integer number (185640).

2^1113812 is an apocalyptic number.

It is an amenable number.

1113812 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1113812 is a wasteful number, since it uses less digits than its factorization.

1113812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39790 (or 39788 counting only the distinct ones).

The product of its digits is 48, while the sum is 17.

The square root of 1113812 is about 1055.3729198724. The cubic root of 1113812 is about 103.6582718544.

Adding to 1113812 its reverse (2183111), we get a palindrome (3296923).

The spelling of 1113812 in words is "one million, one hundred thirteen thousand, eight hundred twelve".