9145109 has 2 divisors, whose sum is σ = 9145110. Its totient is φ = 9145108.

The previous prime is 9145069. The next prime is 9145117. The reversal of 9145109 is 9015419.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8236900 + 908209 = 2870^2 + 953^2 .

It is a cyclic number.

It is not a de Polignac number, because 9145109 - 2²⁰ = 8096533 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9145139) 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, 4572554 + 4572555.

It is an arithmetic number, because the mean of its divisors is an integer number (4572555).

Almost surely, 2^9145109 is an apocalyptic number.

It is an amenable number.

9145109 is a deficient number, since it is larger than the sum of its proper divisors (1).

9145109 is an equidigital number, since it uses as much as digits as its factorization.

9145109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 9145109 is about 3024.0881270228. The cubic root of 9145109 is about 209.1203491742.

The spelling of 9145109 in words is "nine million, one hundred forty-five thousand, one hundred nine".