171130863 has 4 divisors (see below), whose sum is σ = 228174488. Its totient is φ = 114087240.

The previous prime is 171130859. The next prime is 171130871. The reversal of 171130863 is 368031171.

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

It is not a de Polignac number, because 171130863 - 2² = 171130859 is a prime.

It is a super-2 number, since 2×171130863² = 58571544542249538, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 171130863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171130873) 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 3 ways as a sum of consecutive naturals, for example, 28521808 + ... + 28521813.

It is an arithmetic number, because the mean of its divisors is an integer number (57043622).

Almost surely, 2^171130863 is an apocalyptic number.

171130863 is a deficient number, since it is larger than the sum of its proper divisors (57043625).

171130863 is an equidigital number, since it uses as much as digits as its factorization.

171130863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57043624.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 171130863 is about 13081.6995455484. The cubic root of 171130863 is about 555.1914638495.

The spelling of 171130863 in words is "one hundred seventy-one million, one hundred thirty thousand, eight hundred sixty-three".