171434161 has 4 divisors (see below), whose sum is σ = 175615524. Its totient is φ = 167252800.

The previous prime is 171434143. The next prime is 171434189. The reversal of 171434161 is 161434171.

It is a happy number.

171434161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3083536 + 168350625 = 1756^2 + 12975^2 .

It is a cyclic number.

It is not a de Polignac number, because 171434161 - 2⁷ = 171434033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (171434101) 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, 2090620 + ... + 2090701.

It is an arithmetic number, because the mean of its divisors is an integer number (43903881).

Almost surely, 2^171434161 is an apocalyptic number.

It is an amenable number.

171434161 is a deficient number, since it is larger than the sum of its proper divisors (4181363).

171434161 is an equidigital number, since it uses as much as digits as its factorization.

171434161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4181362.

The product of its digits is 2016, while the sum is 28.

The square root of 171434161 is about 13093.2868677044. The cubic root of 171434161 is about 555.5192618794.

The spelling of 171434161 in words is "one hundred seventy-one million, four hundred thirty-four thousand, one hundred sixty-one".