9281945 has 8 divisors (see below), whose sum is σ = 11171520. Its totient is φ = 7403440.

The previous prime is 9281897. The next prime is 9281953. The reversal of 9281945 is 5491829.

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

It is not a de Polignac number, because 9281945 - 2⁸ = 9281689 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 9281899 and 9281908.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 791 + ... + 4380.

It is an arithmetic number, because the mean of its divisors is an integer number (1396440).

Almost surely, 2^9281945 is an apocalyptic number.

It is an amenable number.

9281945 is a deficient number, since it is larger than the sum of its proper divisors (1889575).

9281945 is a wasteful number, since it uses less digits than its factorization.

9281945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5535.

The product of its digits is 25920, while the sum is 38.

The square root of 9281945 is about 3046.6284643849. The cubic root of 9281945 is about 210.1581952368.

The spelling of 9281945 in words is "nine million, two hundred eighty-one thousand, nine hundred forty-five".