13002439 has 2 divisors, whose sum is σ = 13002440. Its totient is φ = 13002438.

The previous prime is 13002427. The next prime is 13002463. The reversal of 13002439 is 93420031.

It is a weak prime.

It is an emirp because it is prime and its reverse (93420031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13002439 - 2¹⁷ = 12871367 is a prime.

13002439 is a modest number, since divided by 2439 gives 130 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13002499) 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 as a sum of consecutive naturals, namely, 6501219 + 6501220.

It is an arithmetic number, because the mean of its divisors is an integer number (6501220).

Almost surely, 2^13002439 is an apocalyptic number.

13002439 is a deficient number, since it is larger than the sum of its proper divisors (1).

13002439 is an equidigital number, since it uses as much as digits as its factorization.

13002439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 13002439 is about 3605.8894880459. The cubic root of 13002439 is about 235.1481727379.

The spelling of 13002439 in words is "thirteen million, two thousand, four hundred thirty-nine".