13181696 has 72 divisors (see below), whose sum is σ = 29826048. Its totient is φ = 5760000.

The previous prime is 13181677. The next prime is 13181699. The reversal of 13181696 is 69618131.

It is not an unprimeable number, because it can be changed into a prime (13181699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87221 + ... + 87371.

Almost surely, 2^13181696 is an apocalyptic number.

13181696 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 13181696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14913024).

13181696 is an abundant number, since it is smaller than the sum of its proper divisors (16644352).

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

13181696 is a wasteful number, since it uses less digits than its factorization.

13181696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 195 counting only the distinct ones).

The product of its digits is 7776, while the sum is 35.

The square root of 13181696 is about 3630.6605459613. The cubic root of 13181696 is about 236.2238611283.

The spelling of 13181696 in words is "thirteen million, one hundred eighty-one thousand, six hundred ninety-six".