13291312 has 40 divisors (see below), whose sum is σ = 26918912. Its totient is φ = 6350400.

The previous prime is 13291303. The next prime is 13291337. The reversal of 13291312 is 21319231.

13291312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 62887 + ... + 63097.

Almost surely, 2^13291312 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 13291312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13459456).

13291312 is an abundant number, since it is smaller than the sum of its proper divisors (13627600).

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

13291312 is a wasteful number, since it uses less digits than its factorization.

13291312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 371 counting only the distinct ones).

The product of its digits is 324, while the sum is 22.

The square root of 13291312 is about 3645.7251679193. The cubic root of 13291312 is about 236.8768491442.

The spelling of 13291312 in words is "thirteen million, two hundred ninety-one thousand, three hundred twelve".