109331689 has 2 divisors, whose sum is σ = 109331690. Its totient is φ = 109331688.

The previous prime is 109331659. The next prime is 109331713. The reversal of 109331689 is 986133901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105411289 + 3920400 = 10267^2 + 1980^2 .

It is a cyclic number.

It is not a de Polignac number, because 109331689 - 2⁵ = 109331657 is a prime.

It is not a weakly prime, because it can be changed into another prime (109331609) 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, 54665844 + 54665845.

It is an arithmetic number, because the mean of its divisors is an integer number (54665845).

Almost surely, 2^109331689 is an apocalyptic number.

It is an amenable number.

109331689 is a deficient number, since it is larger than the sum of its proper divisors (1).

109331689 is an equidigital number, since it uses as much as digits as its factorization.

109331689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 109331689 is about 10456.1794647950. The cubic root of 109331689 is about 478.1696628163.

The spelling of 109331689 in words is "one hundred nine million, three hundred thirty-one thousand, six hundred eighty-nine".