172242271 has 8 divisors (see below), whose sum is σ = 177365664. Its totient is φ = 167162880.

The previous prime is 172242253. The next prime is 172242307.

172242271 is nontrivially palindromic in base 10.

172242271 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 172242271 - 2¹¹ = 172240223 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 (172242211) 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, 2971 + ... + 18796.

It is an arithmetic number, because the mean of its divisors is an integer number (22170708).

Almost surely, 2^172242271 is an apocalyptic number.

172242271 is a deficient number, since it is larger than the sum of its proper divisors (5123393).

172242271 is a wasteful number, since it uses less digits than its factorization.

172242271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22001.

The product of its digits is 3136, while the sum is 28.

The square root of 172242271 is about 13124.1102936542. The cubic root of 172242271 is about 556.3907667811.

The spelling of 172242271 in words is "one hundred seventy-two million, two hundred forty-two thousand, two hundred seventy-one".