172130273 has 8 divisors (see below), whose sum is σ = 200432448. Its totient is φ = 144756144.

The previous prime is 172130269. The next prime is 172130323. The reversal of 172130273 is 372031271.

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

It is not a de Polignac number, because 172130273 - 2² = 172130269 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172130243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231611 + ... + 232352.

It is an arithmetic number, because the mean of its divisors is an integer number (25054056).

Almost surely, 2^172130273 is an apocalyptic number.

It is an amenable number.

172130273 is a deficient number, since it is larger than the sum of its proper divisors (28302175).

172130273 is an equidigital number, since it uses as much as digits as its factorization.

172130273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464023.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 172130273 is about 13119.8427200939. The cubic root of 172130273 is about 556.2701456660.

The spelling of 172130273 in words is "one hundred seventy-two million, one hundred thirty thousand, two hundred seventy-three".