116818109 has 2 divisors, whose sum is σ = 116818110. Its totient is φ = 116818108.

The previous prime is 116818103. The next prime is 116818133. The reversal of 116818109 is 901818611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94284100 + 22534009 = 9710^2 + 4747^2 .

It is an emirp because it is prime and its reverse (901818611) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116818109 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116818103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58409054 + 58409055.

It is an arithmetic number, because the mean of its divisors is an integer number (58409055).

Almost surely, 2^116818109 is an apocalyptic number.

It is an amenable number.

116818109 is a deficient number, since it is larger than the sum of its proper divisors (1).

116818109 is an equidigital number, since it uses as much as digits as its factorization.

116818109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 35.

The square root of 116818109 is about 10808.2426416139. The cubic root of 116818109 is about 488.8437390601.

The spelling of 116818109 in words is "one hundred sixteen million, eight hundred eighteen thousand, one hundred nine".