109267909 has 2 divisors, whose sum is σ = 109267910. Its totient is φ = 109267908.

The previous prime is 109267889. The next prime is 109267937. The reversal of 109267909 is 909762901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101304225 + 7963684 = 10065^2 + 2822^2 .

It is an emirp because it is prime and its reverse (909762901) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109267909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109267999) 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, 54633954 + 54633955.

It is an arithmetic number, because the mean of its divisors is an integer number (54633955).

Almost surely, 2^109267909 is an apocalyptic number.

It is an amenable number.

109267909 is a deficient number, since it is larger than the sum of its proper divisors (1).

109267909 is an equidigital number, since it uses as much as digits as its factorization.

109267909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 109267909 is about 10453.1291487286. The cubic root of 109267909 is about 478.0766626572.

The spelling of 109267909 in words is "one hundred nine million, two hundred sixty-seven thousand, nine hundred nine".