172353272 has 32 divisors (see below), whose sum is σ = 397740000. Its totient is φ = 68183424.

The previous prime is 172353271. The next prime is 172353343. The reversal of 172353272 is 272353271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172353271) 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, 117647 + ... + 119102.

It is an arithmetic number, because the mean of its divisors is an integer number (12429375).

Almost surely, 2^172353272 is an apocalyptic number.

It is an amenable number.

172353272 is an abundant number, since it is smaller than the sum of its proper divisors (225386728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172353272 is a wasteful number, since it uses less digits than its factorization.

172353272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236775 (or 236771 counting only the distinct ones).

The product of its digits is 17640, while the sum is 32.

The square root of 172353272 is about 13128.3385087375. The cubic root of 172353272 is about 556.5102625528.

Subtracting 172353272 from its reverse (272353271), we obtain a palindrome (99999999).

The spelling of 172353272 in words is "one hundred seventy-two million, three hundred fifty-three thousand, two hundred seventy-two".