13539047 has 2 divisors, whose sum is σ = 13539048. Its totient is φ = 13539046.

The previous prime is 13539037. The next prime is 13539049. The reversal of 13539047 is 74093531.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13539047 - 2⁶ = 13538983 is a prime.

Together with 13539049, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13539049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6769523 + 6769524.

It is an arithmetic number, because the mean of its divisors is an integer number (6769524).

Almost surely, 2^13539047 is an apocalyptic number.

13539047 is a deficient number, since it is larger than the sum of its proper divisors (1).

13539047 is an equidigital number, since it uses as much as digits as its factorization.

13539047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 13539047 is about 3679.5444011453. The cubic root of 13539047 is about 238.3395044071.

The spelling of 13539047 in words is "thirteen million, five hundred thirty-nine thousand, forty-seven".