172464171 has 16 divisors (see below), whose sum is σ = 251475840. Its totient is φ = 104265920.

The previous prime is 172464161. The next prime is 172464203. The reversal of 172464171 is 171464271.

It is not a de Polignac number, because 172464171 - 2⁶ = 172464107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (172464101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7591 + ... + 20063.

It is an arithmetic number, because the mean of its divisors is an integer number (15717240).

Almost surely, 2^172464171 is an apocalyptic number.

172464171 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

172464171 is a deficient number, since it is larger than the sum of its proper divisors (79011669).

172464171 is a wasteful number, since it uses less digits than its factorization.

172464171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12906.

The product of its digits is 9408, while the sum is 33.

The square root of 172464171 is about 13132.5614790109. The cubic root of 172464171 is about 556.6295972941.

The spelling of 172464171 in words is "one hundred seventy-two million, four hundred sixty-four thousand, one hundred seventy-one".