172516271 has 8 divisors (see below), whose sum is σ = 178243584. Its totient is φ = 166799160.

The previous prime is 172516259. The next prime is 172516283. The reversal of 172516271 is 172615271.

172516271 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (172516259) and next prime (172516283).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172516271 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 (172516231) 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, 48086 + ... + 51548.

It is an arithmetic number, because the mean of its divisors is an integer number (22280448).

Almost surely, 2^172516271 is an apocalyptic number.

172516271 is a deficient number, since it is larger than the sum of its proper divisors (5727313).

172516271 is a wasteful number, since it uses less digits than its factorization.

172516271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5101.

The product of its digits is 5880, while the sum is 32.

The square root of 172516271 is about 13134.5449483414. The cubic root of 172516271 is about 556.6856427171.

The spelling of 172516271 in words is "one hundred seventy-two million, five hundred sixteen thousand, two hundred seventy-one".