171130993 has 8 divisors (see below), whose sum is σ = 197670240. Its totient is φ = 146422080.

The previous prime is 171130991. The next prime is 171131003. The reversal of 171130993 is 399031171.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 171130993 - 2¹ = 171130991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (171130991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457383 + ... + 457756.

It is an arithmetic number, because the mean of its divisors is an integer number (24708780).

Almost surely, 2^171130993 is an apocalyptic number.

It is an amenable number.

171130993 is a deficient number, since it is larger than the sum of its proper divisors (26539247).

171130993 is a wasteful number, since it uses less digits than its factorization.

171130993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915167.

The product of its (nonzero) digits is 5103, while the sum is 34.

The square root of 171130993 is about 13081.7045143208. The cubic root of 171130993 is about 555.1916044337.

The spelling of 171130993 in words is "one hundred seventy-one million, one hundred thirty thousand, nine hundred ninety-three".