171673481 has 8 divisors (see below), whose sum is σ = 196793664. Its totient is φ = 146702160.

The previous prime is 171673471. The next prime is 171673487. The reversal of 171673481 is 184376171.

It is a happy number.

171673481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-171673481 is a prime.

It is a super-2 number, since 2×171673481² = 58943568157314722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (171673487) 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, 34730 + ... + 39363.

It is an arithmetic number, because the mean of its divisors is an integer number (24599208).

Almost surely, 2^171673481 is an apocalyptic number.

It is an amenable number.

171673481 is a deficient number, since it is larger than the sum of its proper divisors (25120183).

171673481 is an equidigital number, since it uses as much as digits as its factorization.

171673481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74431.

The product of its digits is 28224, while the sum is 38.

The square root of 171673481 is about 13102.4227149028. The cubic root of 171673481 is about 555.7776410590. Note that the first 3 decimals are identical.

The spelling of 171673481 in words is "one hundred seventy-one million, six hundred seventy-three thousand, four hundred eighty-one".