13056613 has 4 divisors (see below), whose sum is σ = 13069420. Its totient is φ = 13043808.

The previous prime is 13056607. The next prime is 13056619. The reversal of 13056613 is 31665031.

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 (13056607) and next prime (13056619).

It can be written as a sum of positive squares in 2 ways, for example, as 7306209 + 5750404 = 2703^2 + 2398^2 .

It is a cyclic number.

It is not a de Polignac number, because 13056613 - 2⁹ = 13056101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13056619) 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 3 ways as a sum of consecutive naturals, for example, 4728 + ... + 6961.

It is an arithmetic number, because the mean of its divisors is an integer number (3267355).

Almost surely, 2^13056613 is an apocalyptic number.

It is an amenable number.

13056613 is a deficient number, since it is larger than the sum of its proper divisors (12807).

13056613 is a wasteful number, since it uses less digits than its factorization.

13056613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12806.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 13056613 is about 3613.3935573087. The cubic root of 13056613 is about 235.4742978578.

The spelling of 13056613 in words is "thirteen million, fifty-six thousand, six hundred thirteen".