172193171 has 2 divisors, whose sum is σ = 172193172. Its totient is φ = 172193170.

The previous prime is 172193159. The next prime is 172193233. The reversal of 172193171 is 171391271.

172193171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 172193171 - 2¹⁰ = 172192147 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (172193141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86096585 + 86096586.

It is an arithmetic number, because the mean of its divisors is an integer number (86096586).

Almost surely, 2^172193171 is an apocalyptic number.

172193171 is a deficient number, since it is larger than the sum of its proper divisors (1).

172193171 is an equidigital number, since it uses as much as digits as its factorization.

172193171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2646, while the sum is 32.

The square root of 172193171 is about 13122.2395573317. The cubic root of 172193171 is about 556.3378928403.

The spelling of 172193171 in words is "one hundred seventy-two million, one hundred ninety-three thousand, one hundred seventy-one".