9115173 has 12 divisors (see below), whose sum is σ = 13654368. Its totient is φ = 6076620.

The previous prime is 9115159. The next prime is 9115177. The reversal of 9115173 is 3715119.

It is a happy number.

It is not a de Polignac number, because 9115173 - 2⁶ = 9115109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9115177) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18513 + ... + 18998.

It is an arithmetic number, because the mean of its divisors is an integer number (1137864).

Almost surely, 2^9115173 is an apocalyptic number.

It is an amenable number.

9115173 is a deficient number, since it is larger than the sum of its proper divisors (4539195).

9115173 is an equidigital number, since it uses as much as digits as its factorization.

9115173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37526 (or 37514 counting only the distinct ones).

The product of its digits is 945, while the sum is 27.

The square root of 9115173 is about 3019.1344786213. The cubic root of 9115173 is about 208.8919185069.

It can be divided in two parts, 911 and 5173, that added together give a square (6084 = 78²).

The spelling of 9115173 in words is "nine million, one hundred fifteen thousand, one hundred seventy-three".