2172575194 has 16 divisors (see below), whose sum is σ = 3375036000. Its totient is φ = 1047647664.

The previous prime is 2172575191. The next prime is 2172575203. The reversal of 2172575194 is 4915752712.

It is a self number, because there is not a number n which added to its sum of digits gives 2172575194.

It is not an unprimeable number, because it can be changed into a prime (2172575191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31957 + ... + 73255.

It is an arithmetic number, because the mean of its divisors is an integer number (210939750).

Almost surely, 2^2172575194 is an apocalyptic number.

2172575194 is a deficient number, since it is larger than the sum of its proper divisors (1202460806).

2172575194 is a wasteful number, since it uses less digits than its factorization.

2172575194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42237.

The product of its digits is 176400, while the sum is 43.

The square root of 2172575194 is about 46610.8913667181. The cubic root of 2172575194 is about 1295.1645202746.

The spelling of 2172575194 in words is "two billion, one hundred seventy-two million, five hundred seventy-five thousand, one hundred ninety-four".