9115225 has 24 divisors (see below), whose sum is σ = 13193600. Its totient is φ = 6244560.

The previous prime is 9115207. The next prime is 9115229. The reversal of 9115225 is 5225119.

It is not a de Polignac number, because 9115225 - 2¹⁵ = 9082457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

9115225 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 9115225.

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 in 23 ways as a sum of consecutive naturals, for example, 8044 + ... + 9106.

Almost surely, 2^9115225 is an apocalyptic number.

It is an amenable number.

9115225 is a deficient number, since it is larger than the sum of its proper divisors (4078375).

9115225 is a wasteful number, since it uses less digits than its factorization.

9115225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094 (or 1075 counting only the distinct ones).

The product of its digits is 900, while the sum is 25.

The square root of 9115225 is about 3019.1430903487. The cubic root of 9115225 is about 208.8923157331.

The spelling of 9115225 in words is "nine million, one hundred fifteen thousand, two hundred twenty-five".