9115173442 has 8 divisors (see below), whose sum is σ = 13808134332. Its totient is φ = 4512462000.

The previous prime is 9115173421. The next prime is 9115173469. The reversal of 9115173442 is 2443715119.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8883251001 + 231922441 = 94251^2 + 15229^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22562109 + ... + 22562512.

Almost surely, 2^9115173442 is an apocalyptic number.

9115173442 is a deficient number, since it is larger than the sum of its proper divisors (4692960890).

9115173442 is a wasteful number, since it uses less digits than its factorization.

9115173442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45124724.

The product of its digits is 30240, while the sum is 37.

The square root of 9115173442 is about 95473.4174626634. The cubic root of 9115173442 is about 2088.9192188328.

The spelling of 9115173442 in words is "nine billion, one hundred fifteen million, one hundred seventy-three thousand, four hundred forty-two".