13839523 has 2 divisors, whose sum is σ = 13839524. Its totient is φ = 13839522.

The previous prime is 13839521. The next prime is 13839557. The reversal of 13839523 is 32593831.

13839523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (13839557) can be obtained adding 13839523 to its sum of digits (34).

It is a weak prime.

It is an emirp because it is prime and its reverse (32593831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13839523 - 2¹ = 13839521 is a prime.

Together with 13839521, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13839521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6919761 + 6919762.

It is an arithmetic number, because the mean of its divisors is an integer number (6919762).

Almost surely, 2^13839523 is an apocalyptic number.

13839523 is a deficient number, since it is larger than the sum of its proper divisors (1).

13839523 is an equidigital number, since it uses as much as digits as its factorization.

13839523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 34.

The square root of 13839523 is about 3720.1509377981. The cubic root of 13839523 is about 240.0897985726.

The spelling of 13839523 in words is "thirteen million, eight hundred thirty-nine thousand, five hundred twenty-three".