80311081 has 8 divisors (see below), whose sum is σ = 84893600. Its totient is φ = 75764160.

The previous prime is 80311073. The next prime is 80311093. The reversal of 80311081 is 18011308.

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 80311081 - 2³ = 80311073 is a prime.

It is a super-3 number, since 3×80311081³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80311001) 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 7 ways as a sum of consecutive naturals, for example, 4191 + ... + 13348.

It is an arithmetic number, because the mean of its divisors is an integer number (10611700).

Almost surely, 2^80311081 is an apocalyptic number.

It is an amenable number.

80311081 is a deficient number, since it is larger than the sum of its proper divisors (4582519).

80311081 is a wasteful number, since it uses less digits than its factorization.

80311081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17799.

The product of its (nonzero) digits is 192, while the sum is 22.

The square root of 80311081 is about 8961.6449940845. The cubic root of 80311081 is about 431.4447187323. Note that the first 3 decimals are identical.

Adding to 80311081 its reverse (18011308), we get a palindrome (98322389).

The spelling of 80311081 in words is "eighty million, three hundred eleven thousand, eighty-one".