13503116 has 36 divisors (see below), whose sum is σ = 27125616. Its totient is φ = 5866080.

The previous prime is 13503103. The next prime is 13503121. The reversal of 13503116 is 61130531.

It is a happy number.

It is a Smith number, since the sum of its digits (20) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10526 + ... + 11738.

Almost surely, 2^13503116 is an apocalyptic number.

It is an amenable number.

13503116 is an abundant number, since it is smaller than the sum of its proper divisors (13622500).

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

13503116 is a wasteful number, since it uses less digits than its factorization.

13503116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262 (or 1249 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 13503116 is about 3674.6586236003. The cubic root of 13503116 is about 238.1284761699.

Adding to 13503116 its reverse (61130531), we get a palindrome (74633647).

The spelling of 13503116 in words is "thirteen million, five hundred three thousand, one hundred sixteen".