108783109 has 2 divisors, whose sum is σ = 108783110. Its totient is φ = 108783108.

The previous prime is 108783097. The next prime is 108783131. The reversal of 108783109 is 901387801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77176225 + 31606884 = 8785^2 + 5622^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108783109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108783139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54391554 + 54391555.

It is an arithmetic number, because the mean of its divisors is an integer number (54391555).

Almost surely, 2^108783109 is an apocalyptic number.

It is an amenable number.

108783109 is a deficient number, since it is larger than the sum of its proper divisors (1).

108783109 is an equidigital number, since it uses as much as digits as its factorization.

108783109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 108783109 is about 10429.9141415450. The cubic root of 108783109 is about 477.3685706828.

The spelling of 108783109 in words is "one hundred eight million, seven hundred eighty-three thousand, one hundred nine".