13006243 has 4 divisors (see below), whose sum is σ = 13023360. Its totient is φ = 12989128.

The previous prime is 13006219. The next prime is 13006249. The reversal of 13006243 is 34260031.

13006243 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34260031 = 13 ⋅2635387.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13006243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13006243.

It is not an unprimeable number, because it can be changed into a prime (13006249) 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, 7363 + ... + 8956.

It is an arithmetic number, because the mean of its divisors is an integer number (3255840).

Almost surely, 2^13006243 is an apocalyptic number.

13006243 is a deficient number, since it is larger than the sum of its proper divisors (17117).

13006243 is an equidigital number, since it uses as much as digits as its factorization.

13006243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17116.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 13006243 is about 3606.4169198805. The cubic root of 13006243 is about 235.1711021907.

Adding to 13006243 its reverse (34260031), we get a palindrome (47266274).

The spelling of 13006243 in words is "thirteen million, six thousand, two hundred forty-three".