13129243 has 2 divisors, whose sum is σ = 13129244. Its totient is φ = 13129242.

The previous prime is 13129231. The next prime is 13129267. The reversal of 13129243 is 34292131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13129243 - 2¹⁷ = 12998171 is a prime.

It is not a weakly prime, because it can be changed into another prime (13129273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6564621 + 6564622.

It is an arithmetic number, because the mean of its divisors is an integer number (6564622).

Almost surely, 2^13129243 is an apocalyptic number.

13129243 is a deficient number, since it is larger than the sum of its proper divisors (1).

13129243 is an equidigital number, since it uses as much as digits as its factorization.

13129243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 25.

The square root of 13129243 is about 3623.4297288619. The cubic root of 13129243 is about 235.9101149129.

The spelling of 13129243 in words is "thirteen million, one hundred twenty-nine thousand, two hundred forty-three".