171113472 has 110 divisors (see below), whose sum is σ = 511225968. Its totient is φ = 57010176.

The previous prime is 171113441. The next prime is 171113489. The reversal of 171113472 is 274311171.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 81913 + ... + 83975.

Almost surely, 2^171113472 is an apocalyptic number.

171113472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 171113472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255612984).

171113472 is an abundant number, since it is smaller than the sum of its proper divisors (340112496).

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

171113472 is an equidigital number, since it uses as much as digits as its factorization.

171113472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2095 (or 2068 counting only the distinct ones).

The product of its digits is 1176, while the sum is 27.

The square root of 171113472 is about 13081.0348214505. The cubic root of 171113472 is about 555.1726562897.

The spelling of 171113472 in words is "one hundred seventy-one million, one hundred thirteen thousand, four hundred seventy-two".