173125145 has 8 divisors (see below), whose sum is σ = 208658760. Its totient is φ = 137894400.

The previous prime is 173125129. The next prime is 173125151. The reversal of 173125145 is 541521371.

It can be written as a sum of positive squares in 4 ways, for example, as 24870169 + 148254976 = 4987^2 + 12176^2 .

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

It is not a de Polignac number, because 173125145 - 2⁴ = 173125129 is a prime.

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, 74456 + ... + 76745.

It is an arithmetic number, because the mean of its divisors is an integer number (26082345).

Almost surely, 2^173125145 is an apocalyptic number.

It is an amenable number.

173125145 is a deficient number, since it is larger than the sum of its proper divisors (35533615).

173125145 is a wasteful number, since it uses less digits than its factorization.

173125145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151435.

The product of its digits is 4200, while the sum is 29.

The square root of 173125145 is about 13157.7028770223. The cubic root of 173125145 is about 557.3397905458.

The spelling of 173125145 in words is "one hundred seventy-three million, one hundred twenty-five thousand, one hundred forty-five".