9120105 has 24 divisors (see below), whose sum is σ = 15879240. Its totient is φ = 4842240.

The previous prime is 9120103. The next prime is 9120119. The reversal of 9120105 is 5010219.

It can be written as a sum of positive squares in 4 ways, for example, as 47961 + 9072144 = 219^2 + 3012^2 .

It is not a de Polignac number, because 9120105 - 2¹ = 9120103 is a prime.

It is a super-2 number, since 2×9120105² = 166352630422050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9120101) 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 in 23 ways as a sum of consecutive naturals, for example, 17245 + ... + 17765.

It is an arithmetic number, because the mean of its divisors is an integer number (661635).

Almost surely, 2^9120105 is an apocalyptic number.

It is an amenable number.

9120105 is a deficient number, since it is larger than the sum of its proper divisors (6759135).

9120105 is a wasteful number, since it uses less digits than its factorization.

9120105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921 (or 918 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 9120105 is about 3019.9511585454. The cubic root of 9120105 is about 208.9295871714.

The spelling of 9120105 in words is "nine million, one hundred twenty thousand, one hundred five".