173188022242 has 8 divisors (see below), whose sum is σ = 262165355100. Its totient is φ = 85799570544.

The previous prime is 173188022221. The next prime is 173188022269. The reversal of 173188022242 is 242220881371.

It can be written as a sum of positive squares in 2 ways, for example, as 150793199041 + 22394823201 = 388321^2 + 149649^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 173188022195 and 173188022204.

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, 397220017 + ... + 397220452.

Almost surely, 2^173188022242 is an apocalyptic number.

173188022242 is a deficient number, since it is larger than the sum of its proper divisors (88977332858).

173188022242 is a wasteful number, since it uses less digits than its factorization.

173188022242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794440580.

The product of its (nonzero) digits is 86016, while the sum is 40.

The spelling of 173188022242 in words is "one hundred seventy-three billion, one hundred eighty-eight million, twenty-two thousand, two hundred forty-two".