172825271 has 2 divisors, whose sum is σ = 172825272. Its totient is φ = 172825270.

The previous prime is 172825259. The next prime is 172825307. The reversal of 172825271 is 172528271.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 172825271 - 2⁶ = 172825207 is a prime.

It is a super-3 number, since 3×172825271³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172825231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86412635 + 86412636.

It is an arithmetic number, because the mean of its divisors is an integer number (86412636).

Almost surely, 2^172825271 is an apocalyptic number.

172825271 is a deficient number, since it is larger than the sum of its proper divisors (1).

172825271 is an equidigital number, since it uses as much as digits as its factorization.

172825271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15680, while the sum is 35.

The square root of 172825271 is about 13146.3025600357. The cubic root of 172825271 is about 557.0178109303.

The spelling of 172825271 in words is "one hundred seventy-two million, eight hundred twenty-five thousand, two hundred seventy-one".