171359872 has 16 divisors (see below), whose sum is σ = 341381250. Its totient is φ = 85679872.

The previous prime is 171359863. The next prime is 171359873. The reversal of 171359872 is 278953171.

It can be written as a sum of positive squares in only one way, i.e., 87160896 + 84198976 = 9336^2 + 9176^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (171359873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669247 + ... + 669502.

Almost surely, 2^171359872 is an apocalyptic number.

It is an amenable number.

171359872 is a deficient number, since it is larger than the sum of its proper divisors (170021378).

171359872 is an equidigital number, since it uses as much as digits as its factorization.

171359872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338763 (or 1338751 counting only the distinct ones).

The product of its digits is 105840, while the sum is 43.

The square root of 171359872 is about 13090.4496485033. The cubic root of 171359872 is about 555.4390076819.

The spelling of 171359872 in words is "one hundred seventy-one million, three hundred fifty-nine thousand, eight hundred seventy-two".