8118109 has 2 divisors, whose sum is σ = 8118110. Its totient is φ = 8118108.

The previous prime is 8118107. The next prime is 8118137. The reversal of 8118109 is 9018118.

It is an a-pointer prime, because the next prime (8118137) can be obtained adding 8118109 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6874884 + 1243225 = 2622^2 + 1115^2 .

It is a cyclic number.

It is not a de Polignac number, because 8118109 - 2¹ = 8118107 is a prime.

Together with 8118107, it forms a pair of twin primes.

It is a plaindrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8118101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4059054 + 4059055.

It is an arithmetic number, because the mean of its divisors is an integer number (4059055).

Almost surely, 2^8118109 is an apocalyptic number.

It is an amenable number.

8118109 is a deficient number, since it is larger than the sum of its proper divisors (1).

8118109 is an equidigital number, since it uses as much as digits as its factorization.

8118109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 28.

The square root of 8118109 is about 2849.2295449823. The cubic root of 8118109 is about 200.9794373493.

Subtracting 8118109 from its reverse (9018118), we obtain a palindrome (900009).

The spelling of 8118109 in words is "eight million, one hundred eighteen thousand, one hundred nine".