13197312 has 84 divisors (see below), whose sum is σ = 38336220. Its totient is φ = 4374528.

The previous prime is 13197299. The next prime is 13197313. The reversal of 13197312 is 21379131.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13197313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73639 + ... + 73817.

Almost surely, 2^13197312 is an apocalyptic number.

13197312 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 13197312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19168110).

13197312 is an abundant number, since it is smaller than the sum of its proper divisors (25138908).

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

13197312 is an equidigital number, since it uses as much as digits as its factorization.

13197312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211 (or 184 counting only the distinct ones).

The product of its digits is 1134, while the sum is 27.

The square root of 13197312 is about 3632.8104822575. The cubic root of 13197312 is about 236.3171069967.

The spelling of 13197312 in words is "thirteen million, one hundred ninety-seven thousand, three hundred twelve".