173130155 has 16 divisors (see below), whose sum is σ = 226918368. Its totient is φ = 125760000.

The previous prime is 173130151. The next prime is 173130157. The reversal of 173130155 is 551031371.

It is not a de Polignac number, because 173130155 - 2² = 173130151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (173130151) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 64745 + ... + 67365.

It is an arithmetic number, because the mean of its divisors is an integer number (14182398).

Almost surely, 2^173130155 is an apocalyptic number.

173130155 is a deficient number, since it is larger than the sum of its proper divisors (53788213).

173130155 is a wasteful number, since it uses less digits than its factorization.

173130155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3838.

The product of its (nonzero) digits is 1575, while the sum is 26.

The square root of 173130155 is about 13157.8932584210. The cubic root of 173130155 is about 557.3451667057.

The spelling of 173130155 in words is "one hundred seventy-three million, one hundred thirty thousand, one hundred fifty-five".