13318613 has 8 divisors (see below), whose sum is σ = 16605120. Its totient is φ = 10378080.

The previous prime is 13318607. The next prime is 13318619. The reversal of 13318613 is 31681331.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13318607) and next prime (13318619).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13318613 - 2⁴ = 13318597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13318619) 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, 86408 + ... + 86561.

It is an arithmetic number, because the mean of its divisors is an integer number (2075640).

Almost surely, 2^13318613 is an apocalyptic number.

It is an amenable number.

13318613 is a deficient number, since it is larger than the sum of its proper divisors (3286507).

13318613 is a wasteful number, since it uses less digits than its factorization.

13318613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172987.

The product of its digits is 1296, while the sum is 26.

The square root of 13318613 is about 3649.4674954026. The cubic root of 13318613 is about 237.0389237405.

Adding to 13318613 its reverse (31681331), we get a palindrome (44999944).

It can be divided in two parts, 13318 and 613, that added together give a palindrome (13931).

The spelling of 13318613 in words is "thirteen million, three hundred eighteen thousand, six hundred thirteen".