13117109 has 2 divisors, whose sum is σ = 13117110. Its totient is φ = 13117108.

The previous prime is 13117103. The next prime is 13117121. The reversal of 13117109 is 90171131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8614225 + 4502884 = 2935^2 + 2122^2 .

It is a cyclic number.

It is not a de Polignac number, because 13117109 - 2⁸ = 13116853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13117103) 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, 6558554 + 6558555.

It is an arithmetic number, because the mean of its divisors is an integer number (6558555).

Almost surely, 2^13117109 is an apocalyptic number.

It is an amenable number.

13117109 is a deficient number, since it is larger than the sum of its proper divisors (1).

13117109 is an equidigital number, since it uses as much as digits as its factorization.

13117109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 189, while the sum is 23.

The square root of 13117109 is about 3621.7549613413. The cubic root of 13117109 is about 235.8374167475.

The spelling of 13117109 in words is "thirteen million, one hundred seventeen thousand, one hundred nine".