13375909 has 2 divisors, whose sum is σ = 13375910. Its totient is φ = 13375908.

The previous prime is 13375883. The next prime is 13375913. The reversal of 13375909 is 90957331.

13375909 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 can be written as a sum of positive squares in only one way, i.e., 9746884 + 3629025 = 3122^2 + 1905^2 .

It is an emirp because it is prime and its reverse (90957331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13375909 - 2⁵ = 13375877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13375919) 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, 6687954 + 6687955.

It is an arithmetic number, because the mean of its divisors is an integer number (6687955).

Almost surely, 2^13375909 is an apocalyptic number.

It is an amenable number.

13375909 is a deficient number, since it is larger than the sum of its proper divisors (1).

13375909 is an equidigital number, since it uses as much as digits as its factorization.

13375909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25515, while the sum is 37.

The square root of 13375909 is about 3657.3089833920. The cubic root of 13375909 is about 237.3783473004.

The spelling of 13375909 in words is "thirteen million, three hundred seventy-five thousand, nine hundred nine".