13116361 has 4 divisors (see below), whose sum is σ = 13138372. Its totient is φ = 13094352.

The previous prime is 13116359. The next prime is 13116373. The reversal of 13116361 is 16361131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6125625 + 6990736 = 2475^2 + 2644^2 .

It is a cyclic number.

It is not a de Polignac number, because 13116361 - 2¹ = 13116359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13116331) 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, 10086 + ... + 11311.

It is an arithmetic number, because the mean of its divisors is an integer number (3284593).

Almost surely, 2^13116361 is an apocalyptic number.

It is an amenable number.

13116361 is a deficient number, since it is larger than the sum of its proper divisors (22011).

13116361 is an equidigital number, since it uses as much as digits as its factorization.

13116361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22010.

The product of its digits is 324, while the sum is 22.

The square root of 13116361 is about 3621.6516950143. The cubic root of 13116361 is about 235.8329338049.

Adding to 13116361 its reverse (16361131), we get a palindrome (29477492).

The spelling of 13116361 in words is "thirteen million, one hundred sixteen thousand, three hundred sixty-one".