13201439 has 2 divisors, whose sum is σ = 13201440. Its totient is φ = 13201438.

The previous prime is 13201421. The next prime is 13201483. The reversal of 13201439 is 93410231.

13201439 is digitally balanced in base 2, because in such base 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 (93410231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13201439 - 2²⁰ = 12152863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13201499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6600719 + 6600720.

It is an arithmetic number, because the mean of its divisors is an integer number (6600720).

Almost surely, 2^13201439 is an apocalyptic number.

13201439 is a deficient number, since it is larger than the sum of its proper divisors (1).

13201439 is an equidigital number, since it uses as much as digits as its factorization.

13201439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 13201439 is about 3633.3784553773. The cubic root of 13201439 is about 236.3417377462.

The spelling of 13201439 in words is "thirteen million, two hundred one thousand, four hundred thirty-nine".