13505316 has 48 divisors (see below), whose sum is σ = 34751808. Its totient is φ = 4048000.

The previous prime is 13505299. The next prime is 13505321. The reversal of 13505316 is 61350531.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12826 + ... + 13838.

It is an arithmetic number, because the mean of its divisors is an integer number (723996).

Almost surely, 2^13505316 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 13505316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17375904).

13505316 is an abundant number, since it is smaller than the sum of its proper divisors (21246492).

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

13505316 is a wasteful number, since it uses less digits than its factorization.

13505316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132 (or 1130 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 13505316 is about 3674.9579589432. The cubic root of 13505316 is about 238.1414078567.

Adding to 13505316 its reverse (61350531), we get a palindrome (74855847).

It can be divided in two parts, 1350 and 5316, that added together give a palindrome (6666).

The spelling of 13505316 in words is "thirteen million, five hundred five thousand, three hundred sixteen".