108122309 has 2 divisors, whose sum is σ = 108122310. Its totient is φ = 108122308.

The previous prime is 108122303. The next prime is 108122359. The reversal of 108122309 is 903221801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99062209 + 9060100 = 9953^2 + 3010^2 .

It is an emirp because it is prime and its reverse (903221801) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108122309 is a prime.

It is equal to p_6201575 and since 108122309 and 6201575 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108122303) 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, 54061154 + 54061155.

It is an arithmetic number, because the mean of its divisors is an integer number (54061155).

Almost surely, 2^108122309 is an apocalyptic number.

It is an amenable number.

108122309 is a deficient number, since it is larger than the sum of its proper divisors (1).

108122309 is an equidigital number, since it uses as much as digits as its factorization.

108122309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 108122309 is about 10398.1877748000. The cubic root of 108122309 is about 476.4000194692.

The spelling of 108122309 in words is "one hundred eight million, one hundred twenty-two thousand, three hundred nine".