109811717 has 2 divisors, whose sum is σ = 109811718. Its totient is φ = 109811716.

The previous prime is 109811711. The next prime is 109811749. The reversal of 109811717 is 717118901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86007076 + 23804641 = 9274^2 + 4879^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109811717 is a prime.

It is a super-2 number, since 2×109811717² = 24117226380976178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109811711) 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, 54905858 + 54905859.

It is an arithmetic number, because the mean of its divisors is an integer number (54905859).

Almost surely, 2^109811717 is an apocalyptic number.

It is an amenable number.

109811717 is a deficient number, since it is larger than the sum of its proper divisors (1).

109811717 is an equidigital number, since it uses as much as digits as its factorization.

109811717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 35.

The square root of 109811717 is about 10479.1085975860. The cubic root of 109811717 is about 478.8684529436.

The spelling of 109811717 in words is "one hundred nine million, eight hundred eleven thousand, seven hundred seventeen".