9281229 has 4 divisors (see below), whose sum is σ = 12374976. Its totient is φ = 6187484.

The previous prime is 9281197. The next prime is 9281273. The reversal of 9281229 is 9221829.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9221829 = 3 ⋅3073943.

It is a cyclic number.

It is not a de Polignac number, because 9281229 - 2⁵ = 9281197 is a prime.

It is a super-2 number, since 2×9281229² = 172282423500882, which contains 22 as substring.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 9281229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9281299) 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, 1546869 + ... + 1546874.

It is an arithmetic number, because the mean of its divisors is an integer number (3093744).

Almost surely, 2^9281229 is an apocalyptic number.

It is an amenable number.

9281229 is a deficient number, since it is larger than the sum of its proper divisors (3093747).

9281229 is a wasteful number, since it uses less digits than its factorization.

9281229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3093746.

The product of its digits is 5184, while the sum is 33.

The square root of 9281229 is about 3046.5109551748. The cubic root of 9281229 is about 210.1527912998.

The spelling of 9281229 in words is "nine million, two hundred eighty-one thousand, two hundred twenty-nine".