1113636 has 48 divisors (see below), whose sum is σ = 2830464. Its totient is φ = 339456.

The previous prime is 1113617. The next prime is 1113643. The reversal of 1113636 is 6363111.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10761 + ... + 10863.

It is an arithmetic number, because the mean of its divisors is an integer number (58968).

2^1113636 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 1113636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1415232).

1113636 is an abundant number, since it is smaller than the sum of its proper divisors (1716828).

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

1113636 is a wasteful number, since it uses less digits than its factorization.

1113636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 178 counting only the distinct ones).

The product of its digits is 324, while the sum is 21.

The square root of 1113636 is about 1055.2895337300. The cubic root of 1113636 is about 103.6528116819.

Adding to 1113636 its reverse (6363111), we get a palindrome (7476747).

The spelling of 1113636 in words is "one million, one hundred thirteen thousand, six hundred thirty-six".