10990109 has 12 divisors (see below), whose sum is σ = 12588156. Its totient is φ = 9505152.

The previous prime is 10990093. The next prime is 10990117. The reversal of 10990109 is 90109901.

It can be written as a sum of positive squares in 2 ways, for example, as 4972900 + 6017209 = 2230^2 + 2453^2 .

It is not a de Polignac number, because 10990109 - 2⁴ = 10990093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10990169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49172 + ... + 49394.

It is an arithmetic number, because the mean of its divisors is an integer number (1049013).

Almost surely, 2^10990109 is an apocalyptic number.

It is an amenable number.

10990109 is a deficient number, since it is larger than the sum of its proper divisors (1598047).

10990109 is an equidigital number, since it uses as much as digits as its factorization.

10990109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 253 counting only the distinct ones).

The product of its (nonzero) digits is 729, while the sum is 29.

The square root of 10990109 is about 3315.1333306520. The cubic root of 10990109 is about 222.3313303188.

The spelling of 10990109 in words is "ten million, nine hundred ninety thousand, one hundred nine".