1113856 has 36 divisors (see below), whose sum is σ = 2350600. Its totient is φ = 525312.

The previous prime is 1113809. The next prime is 1113859. The reversal of 1113856 is 6583111.

1113856 is nontrivially palindromic in base 15.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1113856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4750 + ... + 4978.

2^1113856 is an apocalyptic number.

1113856 is a gapful number since it is divisible by the number (16) 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 1113856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1175300).

1113856 is an abundant number, since it is smaller than the sum of its proper divisors (1236744).

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

1113856 is an equidigital number, since it uses as much as digits as its factorization.

1113856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264 (or 250 counting only the distinct ones).

The product of its digits is 720, while the sum is 25.

The square root of 1113856 is about 1055.3937653786. The cubic root of 1113856 is about 103.6596368076.

Adding to 1113856 its reverse (6583111), we get a palindrome (7696967).

The spelling of 1113856 in words is "one million, one hundred thirteen thousand, eight hundred fifty-six".