9090109 has 8 divisors (see below), whose sum is σ = 10418048. Its totient is φ = 7769520.

The previous prime is 9090061. The next prime is 9090127. The reversal of 9090109 is 9010909.

9090109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9090109 - 2⁷ = 9089981 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9090139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1144 + ... + 4414.

It is an arithmetic number, because the mean of its divisors is an integer number (1302256).

Almost surely, 2^9090109 is an apocalyptic number.

It is an amenable number.

9090109 is a deficient number, since it is larger than the sum of its proper divisors (1327939).

9090109 is a wasteful number, since it uses less digits than its factorization.

9090109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3675.

The product of its (nonzero) digits is 729, while the sum is 28.

The square root of 9090109 is about 3014.9807627910. The cubic root of 9090109 is about 208.7002793125.

The spelling of 9090109 in words is "nine million, ninety thousand, one hundred nine".