80071191 has 12 divisors (see below), whose sum is σ = 115856832. Its totient is φ = 53289216.

The previous prime is 80071169. The next prime is 80071247. The reversal of 80071191 is 19117008.

It is not a de Polignac number, because 80071191 - 2¹⁵ = 80038423 is a prime.

It is a super-2 number, since 2×80071191² = 12822791256316962, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80071151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1866 + ... + 12791.

It is an arithmetic number, because the mean of its divisors is an integer number (9654736).

Almost surely, 2^80071191 is an apocalyptic number.

80071191 is a deficient number, since it is larger than the sum of its proper divisors (35785641).

80071191 is a wasteful number, since it uses less digits than its factorization.

80071191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15270 (or 15267 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 27.

The square root of 80071191 is about 8948.2507229067. The cubic root of 80071191 is about 431.0147137452.

Adding to 80071191 its reverse (19117008), we get a palindrome (99188199).

The spelling of 80071191 in words is "eighty million, seventy-one thousand, one hundred ninety-one".