9072109 has 2 divisors, whose sum is σ = 9072110. Its totient is φ = 9072108.

The previous prime is 9072083. The next prime is 9072127. The reversal of 9072109 is 9012709.

9072109 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6502500 + 2569609 = 2550^2 + 1603^2 .

It is an emirp because it is prime and its reverse (9012709) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9072109 - 2⁹ = 9071597 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9072199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4536054 + 4536055.

It is an arithmetic number, because the mean of its divisors is an integer number (4536055).

Almost surely, 2^9072109 is an apocalyptic number.

It is an amenable number.

9072109 is a deficient number, since it is larger than the sum of its proper divisors (1).

9072109 is an equidigital number, since it uses as much as digits as its factorization.

9072109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 9072109 is about 3011.9941899014. The cubic root of 9072109 is about 208.5624339784.

The spelling of 9072109 in words is "nine million, seventy-two thousand, one hundred nine".