13143539 has 2 divisors, whose sum is σ = 13143540. Its totient is φ = 13143538.

The previous prime is 13143491. The next prime is 13143551. The reversal of 13143539 is 93534131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13143539 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13143239) 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, 6571769 + 6571770.

It is an arithmetic number, because the mean of its divisors is an integer number (6571770).

Almost surely, 2^13143539 is an apocalyptic number.

13143539 is a deficient number, since it is larger than the sum of its proper divisors (1).

13143539 is an equidigital number, since it uses as much as digits as its factorization.

13143539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4860, while the sum is 29.

The square root of 13143539 is about 3625.4019087544. The cubic root of 13143539 is about 235.9957087700.

The spelling of 13143539 in words is "thirteen million, one hundred forty-three thousand, five hundred thirty-nine".