171480 has 32 divisors (see below), whose sum is σ = 514800. Its totient is φ = 45696.

The previous prime is 171473. The next prime is 171481. The reversal of 171480 is 84171.

171480 = T₁₁ + T₁₂ + ... + T₁₀₀.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 171480.

It is not an unprimeable number, because it can be changed into a prime (171481) by changing a digit.

171480 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 595 + ... + 834.

2¹⁷¹⁴⁸⁰ is an apocalyptic number.

171480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

171480 is an abundant number, since it is smaller than the sum of its proper divisors (343320).

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

171480 is a wasteful number, since it uses less digits than its factorization.

171480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443 (or 1439 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 171480 is about 414.1014368485. The cubic root of 171480 is about 55.5568770056.

The spelling of 171480 in words is "one hundred seventy-one thousand, four hundred eighty".