108386309 has 2 divisors, whose sum is σ = 108386310. Its totient is φ = 108386308.

The previous prime is 108386303. The next prime is 108386321. The reversal of 108386309 is 903683801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68973025 + 39413284 = 8305^2 + 6278^2 .

It is a cyclic number.

It is not a de Polignac number, because 108386309 - 2⁸ = 108386053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108386303) 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, 54193154 + 54193155.

It is an arithmetic number, because the mean of its divisors is an integer number (54193155).

Almost surely, 2^108386309 is an apocalyptic number.

It is an amenable number.

108386309 is a deficient number, since it is larger than the sum of its proper divisors (1).

108386309 is an equidigital number, since it uses as much as digits as its factorization.

108386309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 108386309 is about 10410.8745550026. The cubic root of 108386309 is about 476.7874430019.

The spelling of 108386309 in words is "one hundred eight million, three hundred eighty-six thousand, three hundred nine".