13275109 has 2 divisors, whose sum is σ = 13275110. Its totient is φ = 13275108.

The previous prime is 13275107. The next prime is 13275121. The reversal of 13275109 is 90157231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10562500 + 2712609 = 3250^2 + 1647^2 .

It is a cyclic number.

It is not a de Polignac number, because 13275109 - 2¹ = 13275107 is a prime.

Together with 13275107, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13275107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6637554 + 6637555.

It is an arithmetic number, because the mean of its divisors is an integer number (6637555).

Almost surely, 2^13275109 is an apocalyptic number.

It is an amenable number.

13275109 is a deficient number, since it is larger than the sum of its proper divisors (1).

13275109 is an equidigital number, since it uses as much as digits as its factorization.

13275109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 13275109 is about 3643.5022986132. The cubic root of 13275109 is about 236.7805537526.

The spelling of 13275109 in words is "thirteen million, two hundred seventy-five thousand, one hundred nine".