13426187 has 2 divisors, whose sum is σ = 13426188. Its totient is φ = 13426186.

The previous prime is 13426121. The next prime is 13426199. The reversal of 13426187 is 78162431.

13426187 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13426187 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13426117) 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, 6713093 + 6713094.

It is an arithmetic number, because the mean of its divisors is an integer number (6713094).

Almost surely, 2^13426187 is an apocalyptic number.

13426187 is a deficient number, since it is larger than the sum of its proper divisors (1).

13426187 is an equidigital number, since it uses as much as digits as its factorization.

13426187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 32.

The square root of 13426187 is about 3664.1761693456. The cubic root of 13426187 is about 237.6753984108.

The spelling of 13426187 in words is "thirteen million, four hundred twenty-six thousand, one hundred eighty-seven".