13613516 has 24 divisors (see below), whose sum is σ = 28412160. Its totient is φ = 5580432.

The previous prime is 13613513. The next prime is 13613531. The reversal of 13613516 is 61531631.

It is not an unprimeable number, because it can be changed into a prime (13613513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9926 + ... + 11213.

It is an arithmetic number, because the mean of its divisors is an integer number (1183840).

Almost surely, 2^13613516 is an apocalyptic number.

It is an amenable number.

13613516 is an abundant number, since it is smaller than the sum of its proper divisors (14798644).

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

13613516 is a wasteful number, since it uses less digits than its factorization.

13613516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21173 (or 21171 counting only the distinct ones).

The product of its digits is 1620, while the sum is 26.

The square root of 13613516 is about 3689.6498478853. The cubic root of 13613516 is about 238.7756863166.

The spelling of 13613516 in words is "thirteen million, six hundred thirteen thousand, five hundred sixteen".