13513361 has 4 divisors (see below), whose sum is σ = 13652772. Its totient is φ = 13373952.

The previous prime is 13513349. The next prime is 13513373. The reversal of 13513361 is 16331531.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (13513349) and next prime (13513373).

It can be written as a sum of positive squares in 2 ways, for example, as 9186961 + 4326400 = 3031^2 + 2080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13513361 is a prime.

It is a super-2 number, since 2×13513361² = 365221851032642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13513321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69560 + ... + 69753.

It is an arithmetic number, because the mean of its divisors is an integer number (3413193).

Almost surely, 2^13513361 is an apocalyptic number.

It is an amenable number.

13513361 is a deficient number, since it is larger than the sum of its proper divisors (139411).

13513361 is an equidigital number, since it uses as much as digits as its factorization.

13513361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139410.

The product of its digits is 810, while the sum is 23.

The square root of 13513361 is about 3676.0523663299. The cubic root of 13513361 is about 238.1886847298.

Adding to 13513361 its reverse (16331531), we get a palindrome (29844892).

The spelling of 13513361 in words is "thirteen million, five hundred thirteen thousand, three hundred sixty-one".