13116617 has 4 divisors (see below), whose sum is σ = 13125060. Its totient is φ = 13108176.

The previous prime is 13116589. The next prime is 13116641. The reversal of 13116617 is 71661131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2253001 + 10863616 = 1501^2 + 3296^2 .

It is a cyclic number.

It is not a de Polignac number, because 13116617 - 2¹⁴ = 13100233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13116017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1142 + ... + 5247.

It is an arithmetic number, because the mean of its divisors is an integer number (3281265).

Almost surely, 2^13116617 is an apocalyptic number.

It is an amenable number.

13116617 is a deficient number, since it is larger than the sum of its proper divisors (8443).

13116617 is an equidigital number, since it uses as much as digits as its factorization.

13116617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8442.

The product of its digits is 756, while the sum is 26.

The square root of 13116617 is about 3621.6870378320. The cubic root of 13116617 is about 235.8344680932.

Adding to 13116617 its reverse (71661131), we get a palindrome (84777748).

The spelling of 13116617 in words is "thirteen million, one hundred sixteen thousand, six hundred seventeen".