13606513 has 2 divisors, whose sum is σ = 13606514. Its totient is φ = 13606512.

The previous prime is 13606499. The next prime is 13606519. The reversal of 13606513 is 31560631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13593969 + 12544 = 3687^2 + 112^2 .

It is an emirp because it is prime and its reverse (31560631) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13606513 is a prime.

It is equal to p₈₈₆₁₁₁ and since 13606513 and 886111 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (13606519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6803256 + 6803257.

It is an arithmetic number, because the mean of its divisors is an integer number (6803257).

Almost surely, 2^13606513 is an apocalyptic number.

It is an amenable number.

13606513 is a deficient number, since it is larger than the sum of its proper divisors (1).

13606513 is an equidigital number, since it uses as much as digits as its factorization.

13606513 is an odious number, because the sum of its binary digits is odd.

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

The square root of 13606513 is about 3688.7007197657. The cubic root of 13606513 is about 238.7347360105.

The spelling of 13606513 in words is "thirteen million, six hundred six thousand, five hundred thirteen".