172712271 has 4 divisors (see below), whose sum is σ = 230283032. Its totient is φ = 115141512.

The previous prime is 172712237. The next prime is 172712273. The reversal of 172712271 is 172217271.

172712271 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 172712271 - 2⁷ = 172712143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172712273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28785376 + ... + 28785381.

It is an arithmetic number, because the mean of its divisors is an integer number (57570758).

Almost surely, 2^172712271 is an apocalyptic number.

172712271 is a deficient number, since it is larger than the sum of its proper divisors (57570761).

172712271 is an equidigital number, since it uses as much as digits as its factorization.

172712271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57570760.

The product of its digits is 2744, while the sum is 30.

The square root of 172712271 is about 13142.0040709170. The cubic root of 172712271 is about 556.8963843675.

The spelling of 172712271 in words is "one hundred seventy-two million, seven hundred twelve thousand, two hundred seventy-one".