13116615 has 16 divisors (see below), whose sum is σ = 21129216. Its totient is φ = 6948000.

The previous prime is 13116589. The next prime is 13116641. The reversal of 13116615 is 51661131.

13116615 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13116589) and next prime (13116641).

It is not a de Polignac number, because 13116615 - 2⁸ = 13116359 is a prime.

It is a congruent number.

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, 631 + ... + 5160.

It is an arithmetic number, because the mean of its divisors is an integer number (1320576).

Almost surely, 2^13116615 is an apocalyptic number.

13116615 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13116615 is a deficient number, since it is larger than the sum of its proper divisors (8012601).

13116615 is a wasteful number, since it uses less digits than its factorization.

13116615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5950.

The product of its digits is 540, while the sum is 24.

The square root of 13116615 is about 3621.6867617175. The cubic root of 13116615 is about 235.8344561067.

Adding to 13116615 its reverse (51661131), we get a palindrome (64777746).

It can be divided in two parts, 13116 and 615, that added together give a palindrome (13731).

The spelling of 13116615 in words is "thirteen million, one hundred sixteen thousand, six hundred fifteen".