9172138000 has 40 divisors (see below), whose sum is σ = 22178234520. Its totient is φ = 3668854400.

The previous prime is 9172137991. The next prime is 9172138013. The reversal of 9172138000 is 8312719.

It can be written as a sum of positive squares in 4 ways, for example, as 2700257296 + 6471880704 = 51964^2 + 80448^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2291035 + ... + 2295034.

It is an arithmetic number, because the mean of its divisors is an integer number (554455863).

Almost surely, 2^9172138000 is an apocalyptic number.

It is an amenable number.

9172138000 is an abundant number, since it is smaller than the sum of its proper divisors (13006096520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9172138000 is a wasteful number, since it uses less digits than its factorization.

9172138000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4586092 (or 4586076 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 9172138000 is about 95771.2796197273. The cubic root of 9172138000 is about 2093.2616973696.

The spelling of 9172138000 in words is "nine billion, one hundred seventy-two million, one hundred thirty-eight thousand".