80731171 has 8 divisors (see below), whose sum is σ = 85299200. Its totient is φ = 76195080.

The previous prime is 80731159. The next prime is 80731187. The reversal of 80731171 is 17113708.

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 80731171 - 2⁹ = 80730659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80731271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2691 + ... + 12988.

It is an arithmetic number, because the mean of its divisors is an integer number (10662400).

Almost surely, 2^80731171 is an apocalyptic number.

80731171 is a deficient number, since it is larger than the sum of its proper divisors (4568029).

80731171 is a wasteful number, since it uses less digits than its factorization.

80731171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15969.

The product of its (nonzero) digits is 1176, while the sum is 28.

The square root of 80731171 is about 8985.0526431402. The cubic root of 80731171 is about 432.1956757437.

Adding to 80731171 its reverse (17113708), we get a palindrome (97844879).

The spelling of 80731171 in words is "eighty million, seven hundred thirty-one thousand, one hundred seventy-one".