9281231 has 8 divisors (see below), whose sum is σ = 9642240. Its totient is φ = 8927128.

The previous prime is 9281197. The next prime is 9281273. The reversal of 9281231 is 1321829.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9281231 is a prime.

It is a super-2 number, since 2×9281231² = 172282497750722, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9281231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9281281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1100 + ... + 4446.

It is an arithmetic number, because the mean of its divisors is an integer number (1205280).

Almost surely, 2^9281231 is an apocalyptic number.

9281231 is a deficient number, since it is larger than the sum of its proper divisors (361009).

9281231 is a wasteful number, since it uses less digits than its factorization.

9281231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3453.

The product of its digits is 864, while the sum is 26.

The square root of 9281231 is about 3046.5112834191. The cubic root of 9281231 is about 210.1528063950.

The spelling of 9281231 in words is "nine million, two hundred eighty-one thousand, two hundred thirty-one".