1113156 has 48 divisors (see below), whose sum is σ = 3151680. Its totient is φ = 336960.

The previous prime is 1113149. The next prime is 1113157. The reversal of 1113156 is 6513111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1113157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 720 + ... + 1656.

It is an arithmetic number, because the mean of its divisors is an integer number (65660).

2^1113156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1113156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1575840).

1113156 is an abundant number, since it is smaller than the sum of its proper divisors (2038524).

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

1113156 is a wasteful number, since it uses less digits than its factorization.

1113156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961 (or 953 counting only the distinct ones).

The product of its digits is 90, while the sum is 18.

The square root of 1113156 is about 1055.0620834813. The cubic root of 1113156 is about 103.6379173779.

Adding to 1113156 its reverse (6513111), we get a palindrome (7626267).

The spelling of 1113156 in words is "one million, one hundred thirteen thousand, one hundred fifty-six".