171398481 has 8 divisors (see below), whose sum is σ = 232404960. Its totient is φ = 112328832.

The previous prime is 171398453. The next prime is 171398483. The reversal of 171398481 is 184893171.

171398481 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 not a de Polignac number, because 171398481 - 2²¹ = 169301329 is a prime.

It is a super-2 number, since 2×171398481² = 58754878578214722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (171398483) 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, 484000 + ... + 484353.

It is an arithmetic number, because the mean of its divisors is an integer number (29050620).

Almost surely, 2^171398481 is an apocalyptic number.

It is an amenable number.

171398481 is a deficient number, since it is larger than the sum of its proper divisors (61006479).

171398481 is an equidigital number, since it uses as much as digits as its factorization.

171398481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968415.

The product of its digits is 48384, while the sum is 42.

The square root of 171398481 is about 13091.9242665087. The cubic root of 171398481 is about 555.4807197701.

The spelling of 171398481 in words is "one hundred seventy-one million, three hundred ninety-eight thousand, four hundred eighty-one".