13631112 has 64 divisors (see below), whose sum is σ = 41313600. Its totient is φ = 4129920.

The previous prime is 13631099. The next prime is 13631117. The reversal of 13631112 is 21113631.

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

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is not an unprimeable number, because it can be changed into a prime (13631117) 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, 493 + ... + 5244.

It is an arithmetic number, because the mean of its divisors is an integer number (645525).

Almost surely, 2^13631112 is an apocalyptic number.

13631112 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 13631112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20656800).

13631112 is an abundant number, since it is smaller than the sum of its proper divisors (27682488).

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

13631112 is a wasteful number, since it uses less digits than its factorization.

13631112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5763 (or 5753 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 13631112 is about 3692.0335859794. The cubic root of 13631112 is about 238.8785176516.

Adding to 13631112 its reverse (21113631), we get a palindrome (34744743).

The spelling of 13631112 in words is "thirteen million, six hundred thirty-one thousand, one hundred twelve".