172235532271 has 12 divisors (see below), whose sum is σ = 193344764256. Its totient is φ = 153246309920.

The previous prime is 172235532229. The next prime is 172235532353.

172235532271 is nontrivially palindromic in base 10.

172235532271 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 172235532271 - 2⁷ = 172235532143 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 (172235532221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15137230 + ... + 15148603.

It is an arithmetic number, because the mean of its divisors is an integer number (16112063688).

Almost surely, 2^172235532271 is an apocalyptic number.

172235532271 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

172235532271 is a deficient number, since it is larger than the sum of its proper divisors (21109231985).

172235532271 is a wasteful number, since it uses less digits than its factorization.

172235532271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30285902 (or 30285891 counting only the distinct ones).

The product of its digits is 176400, while the sum is 40.

The spelling of 172235532271 in words is "one hundred seventy-two billion, two hundred thirty-five million, five hundred thirty-two thousand, two hundred seventy-one".