9115228 has 6 divisors (see below), whose sum is σ = 15951656. Its totient is φ = 4557612.

The previous prime is 9115207. The next prime is 9115229. The reversal of 9115228 is 8225119.

It is a junction number, because it is equal to n+sod(n) for n = 9115196 and 9115205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9115229) by changing a digit.

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 as a sum of consecutive naturals, namely, 1139400 + ... + 1139407.

Almost surely, 2^9115228 is an apocalyptic number.

It is an amenable number.

9115228 is a deficient number, since it is larger than the sum of its proper divisors (6836428).

9115228 is a wasteful number, since it uses less digits than its factorization.

9115228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2278811 (or 2278809 counting only the distinct ones).

The product of its digits is 1440, while the sum is 28.

The square root of 9115228 is about 3019.1435871783. The cubic root of 9115228 is about 208.8923386500.

The spelling of 9115228 in words is "nine million, one hundred fifteen thousand, two hundred twenty-eight".