171534303889 has 9 divisors (see below), whose sum is σ = 185750076603. Its totient is φ = 158334387432.

The previous prime is 171534303841. The next prime is 171534303893. The reversal of 171534303889 is 988303435171.

The square root of 171534303889 is 414167.

It is a perfect power (a square), and thus also a powerful number.

171534303889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 25374897025 + 146159406864 = 159295^2 + 382308^2 .

It is not a de Polignac number, because 171534303889 - 2³¹ = 169386820241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (171534301889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5368242 + ... + 5400100.

Almost surely, 2^171534303889 is an apocalyptic number.

171534303889 is the 414167-th square number.

171534303889 is the 207084-th centered octagonal number.

It is an amenable number.

171534303889 is a deficient number, since it is larger than the sum of its proper divisors (14215772714).

171534303889 is an frugal number, since it uses more digits than its factorization.

171534303889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63744 (or 31872 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 171534303889 in words is "one hundred seventy-one billion, five hundred thirty-four million, three hundred three thousand, eight hundred eighty-nine".