172171241 has 8 divisors (see below), whose sum is σ = 193882368. Its totient is φ = 151470000.

The previous prime is 172171213. The next prime is 172171253. The reversal of 172171241 is 142171271.

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

It is a de Polignac number, because none of the positive numbers 2^k-172171241 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 172171241.

It is not an unprimeable number, because it can be changed into a prime (172171201) 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, 252110 + ... + 252791.

It is an arithmetic number, because the mean of its divisors is an integer number (24235296).

Almost surely, 2^172171241 is an apocalyptic number.

172171241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

172171241 is a deficient number, since it is larger than the sum of its proper divisors (21711127).

172171241 is a wasteful number, since it uses less digits than its factorization.

172171241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504943.

The product of its digits is 784, while the sum is 26.

The square root of 172171241 is about 13121.4039264097. The cubic root of 172171241 is about 556.3142740020.

The spelling of 172171241 in words is "one hundred seventy-two million, one hundred seventy-one thousand, two hundred forty-one".