171481472 has 32 divisors (see below), whose sum is σ = 346453200. Its totient is φ = 84528640.

The previous prime is 171481459. The next prime is 171481477. The reversal of 171481472 is 274184171.

171481472 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-3 number, since 3×171481472³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171481477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347 + ... + 18522.

Almost surely, 2^171481472 is an apocalyptic number.

It is an amenable number.

171481472 is an abundant number, since it is smaller than the sum of its proper divisors (174971728).

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

171481472 is an equidigital number, since it uses as much as digits as its factorization.

171481472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18954 (or 18942 counting only the distinct ones).

The product of its digits is 12544, while the sum is 35.

The square root of 171481472 is about 13095.0934322745. The cubic root of 171481472 is about 555.5703597359.

The spelling of 171481472 in words is "one hundred seventy-one million, four hundred eighty-one thousand, four hundred seventy-two".