171272743 has 6 divisors (see below), whose sum is σ = 179043704. Its totient is φ = 163825596.

The previous prime is 171272719. The next prime is 171272771. The reversal of 171272743 is 347272171.

171272743 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 171272743 - 2¹⁷ = 171141671 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 171272699 and 171272708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171273743) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 161355 + ... + 162412.

Almost surely, 2^171272743 is an apocalyptic number.

171272743 is a deficient number, since it is larger than the sum of its proper divisors (7770961).

171272743 is an equidigital number, since it uses as much as digits as its factorization.

171272743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323813 (or 323790 counting only the distinct ones).

The product of its digits is 16464, while the sum is 34.

The square root of 171272743 is about 13087.1212648160. The cubic root of 171272743 is about 555.3448529084.

The spelling of 171272743 in words is "one hundred seventy-one million, two hundred seventy-two thousand, seven hundred forty-three".