1171044171 has 18 divisors (see below), whose sum is σ = 1859262860. Its totient is φ = 709723080.

The previous prime is 1171044143. The next prime is 1171044187. The reversal of 1171044171 is 1714401711.

It is not a de Polignac number, because 1171044171 - 2⁶ = 1171044107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1171044071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 536581 + ... + 538758.

Almost surely, 2^1171044171 is an apocalyptic number.

1171044171 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1171044171 is a deficient number, since it is larger than the sum of its proper divisors (688218689).

1171044171 is a wasteful number, since it uses less digits than its factorization.

1171044171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075367 (or 1075353 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 27.

The square root of 1171044171 is about 34220.5226581945. The cubic root of 1171044171 is about 1054.0416177650.

Adding to 1171044171 its reverse (1714401711), we get a palindrome (2885445882).

It can be divided in two parts, 1171044 and 171, that added together give a triangular number (1171215 = T₁₅₃₀).

The spelling of 1171044171 in words is "one billion, one hundred seventy-one million, forty-four thousand, one hundred seventy-one".