9180109 has 2 divisors, whose sum is σ = 9180110. Its totient is φ = 9180108.

The previous prime is 9180091. The next prime is 9180121. The reversal of 9180109 is 9010819.

9180109 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (9180091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4862025 + 4318084 = 2205^2 + 2078^2 .

It is a cyclic number.

It is not a de Polignac number, because 9180109 - 2⁷ = 9179981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9187109) 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, 4590054 + 4590055.

It is an arithmetic number, because the mean of its divisors is an integer number (4590055).

Almost surely, 2^9180109 is an apocalyptic number.

It is an amenable number.

9180109 is a deficient number, since it is larger than the sum of its proper divisors (1).

9180109 is an equidigital number, since it uses as much as digits as its factorization.

9180109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 9180109 is about 3029.8694691356. The cubic root of 9180109 is about 209.3867901284.

It can be divided in two parts, 91 and 80109, that added together give a triangular number (80200 = T₄₀₀).

The spelling of 9180109 in words is "nine million, one hundred eighty thousand, one hundred nine".