13021613 has 8 divisors (see below), whose sum is σ = 14406336. Its totient is φ = 11670400.

The previous prime is 13021607. The next prime is 13021633. The reversal of 13021613 is 31612031.

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 13021613 - 2⁴ = 13021597 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13021591 and 13021600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13021633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7556 + ... + 9117.

It is an arithmetic number, because the mean of its divisors is an integer number (1800792).

Almost surely, 2^13021613 is an apocalyptic number.

It is an amenable number.

13021613 is a deficient number, since it is larger than the sum of its proper divisors (1384723).

13021613 is a wasteful number, since it uses less digits than its factorization.

13021613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16755.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 13021613 is about 3608.5472146004. The cubic root of 13021613 is about 235.2637027709.

Adding to 13021613 its reverse (31612031), we get a palindrome (44633644).

The spelling of 13021613 in words is "thirteen million, twenty-one thousand, six hundred thirteen".