171396272 has 60 divisors (see below), whose sum is σ = 350187408. Its totient is φ = 81244800.

The previous prime is 171396271. The next prime is 171396317. The reversal of 171396272 is 272693171.

It is not an unprimeable number, because it can be changed into a prime (171396271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1091618 + ... + 1091774.

Almost surely, 2^171396272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 171396272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175093704).

171396272 is an abundant number, since it is smaller than the sum of its proper divisors (178791136).

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

171396272 is a wasteful number, since it uses less digits than its factorization.

171396272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298 (or 261 counting only the distinct ones).

The product of its digits is 31752, while the sum is 38.

The square root of 171396272 is about 13091.8399012515. The cubic root of 171396272 is about 555.4783333970.

The spelling of 171396272 in words is "one hundred seventy-one million, three hundred ninety-six thousand, two hundred seventy-two".