13187712 has 64 divisors (see below), whose sum is σ = 35667360. Its totient is φ = 4316160.

The previous prime is 13187701. The next prime is 13187737. The reversal of 13187712 is 21778131.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 13187712.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23143 + ... + 23705.

Almost surely, 2^13187712 is an apocalyptic number.

13187712 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 13187712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17833680).

13187712 is an abundant number, since it is smaller than the sum of its proper divisors (22479648).

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

13187712 is an equidigital number, since it uses as much as digits as its factorization.

13187712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641 (or 629 counting only the distinct ones).

The product of its digits is 2352, while the sum is 30.

The square root of 13187712 is about 3631.4889508299. The cubic root of 13187712 is about 236.2597924330.

The spelling of 13187712 in words is "thirteen million, one hundred eighty-seven thousand, seven hundred twelve".