9130805 has 4 divisors (see below), whose sum is σ = 10956972. Its totient is φ = 7304640.

The previous prime is 9130801. The next prime is 9130817. The reversal of 9130805 is 5080319.

9130805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5080319 = 499 ⋅10181.

It can be written as a sum of positive squares in 2 ways, for example, as 4977361 + 4153444 = 2231^2 + 2038^2 .

It is not a de Polignac number, because 9130805 - 2² = 9130801 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9130801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 913076 + ... + 913085.

It is an arithmetic number, because the mean of its divisors is an integer number (2739243).

Almost surely, 2^9130805 is an apocalyptic number.

It is an amenable number.

9130805 is a deficient number, since it is larger than the sum of its proper divisors (1826167).

9130805 is a wasteful number, since it uses less digits than its factorization.

9130805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826166.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 9130805 is about 3021.7221910692. The cubic root of 9130805 is about 209.0112628714.

The spelling of 9130805 in words is "nine million, one hundred thirty thousand, eight hundred five".