13504039 has 2 divisors, whose sum is σ = 13504040. Its totient is φ = 13504038.

The previous prime is 13504033. The next prime is 13504091. The reversal of 13504039 is 93040531.

13504039 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (93040531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13504039 - 2⁹ = 13503527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13504033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6752019 + 6752020.

It is an arithmetic number, because the mean of its divisors is an integer number (6752020).

Almost surely, 2^13504039 is an apocalyptic number.

13504039 is a deficient number, since it is larger than the sum of its proper divisors (1).

13504039 is an equidigital number, since it uses as much as digits as its factorization.

13504039 is an evil number, because the sum of its binary digits is even.

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

The square root of 13504039 is about 3674.7842113517. The cubic root of 13504039 is about 238.1339017713.

The spelling of 13504039 in words is "thirteen million, five hundred four thousand, thirty-nine".