13085843 has 2 divisors, whose sum is σ = 13085844. Its totient is φ = 13085842.

The previous prime is 13085819. The next prime is 13085857. The reversal of 13085843 is 34858031.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13085843 - 2¹⁶ = 13020307 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13085543) 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, 6542921 + 6542922.

It is an arithmetic number, because the mean of its divisors is an integer number (6542922).

Almost surely, 2^13085843 is an apocalyptic number.

13085843 is a deficient number, since it is larger than the sum of its proper divisors (1).

13085843 is an equidigital number, since it uses as much as digits as its factorization.

13085843 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 13085843 is about 3617.4359704078. The cubic root of 13085843 is about 235.6498866269.

The spelling of 13085843 in words is "thirteen million, eighty-five thousand, eight hundred forty-three".