9281345 has 4 divisors (see below), whose sum is σ = 11137620. Its totient is φ = 7425072.

The previous prime is 9281323. The next prime is 9281399. The reversal of 9281345 is 5431829.

9281345 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.

It can be written as a sum of positive squares in 2 ways, for example, as 7230721 + 2050624 = 2689^2 + 1432^2 .

It is a cyclic number.

It is not a de Polignac number, because 9281345 - 2⁶ = 9281281 is a prime.

It is a super-2 number, since 2×9281345² = 172286730018050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 928130 + ... + 928139.

It is an arithmetic number, because the mean of its divisors is an integer number (2784405).

Almost surely, 2^9281345 is an apocalyptic number.

It is an amenable number.

9281345 is a deficient number, since it is larger than the sum of its proper divisors (1856275).

9281345 is a wasteful number, since it uses less digits than its factorization.

9281345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856274.

The product of its digits is 8640, while the sum is 32.

The square root of 9281345 is about 3046.5299932874. The cubic root of 9281345 is about 210.1536668169.

The spelling of 9281345 in words is "nine million, two hundred eighty-one thousand, three hundred forty-five".