13312516 has 48 divisors (see below), whose sum is σ = 28134400. Its totient is φ = 5503680.

The previous prime is 13312493. The next prime is 13312517. The reversal of 13312516 is 61521331.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13312517) 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, 42376 + ... + 42688.

Almost surely, 2^13312516 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 13312516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14067200).

13312516 is an abundant number, since it is smaller than the sum of its proper divisors (14821884).

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

13312516 is a wasteful number, since it uses less digits than its factorization.

13312516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369 (or 353 counting only the distinct ones).

The product of its digits is 540, while the sum is 22.

The square root of 13312516 is about 3648.6320724348. The cubic root of 13312516 is about 237.0027476285.

Adding to 13312516 its reverse (61521331), we get a palindrome (74833847).

The spelling of 13312516 in words is "thirteen million, three hundred twelve thousand, five hundred sixteen".