13245516 has 72 divisors (see below), whose sum is σ = 37031904. Its totient is φ = 3970560.

The previous prime is 13245511. The next prime is 13245517. The reversal of 13245516 is 61554231.

It is a self number, because there is not a number n which added to its sum of digits gives 13245516.

It is not an unprimeable number, because it can be changed into a prime (13245511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13606 + ... + 14546.

It is an arithmetic number, because the mean of its divisors is an integer number (514332).

Almost surely, 2^13245516 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 13245516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18515952).

13245516 is an abundant number, since it is smaller than the sum of its proper divisors (23786388).

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

13245516 is a wasteful number, since it uses less digits than its factorization.

13245516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991 (or 986 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 13245516 is about 3639.4389677531. The cubic root of 13245516 is about 236.6044783594.

Adding to 13245516 its reverse (61554231), we get a palindrome (74799747).

The spelling of 13245516 in words is "thirteen million, two hundred forty-five thousand, five hundred sixteen".