80117081 has 8 divisors (see below), whose sum is σ = 87925824. Its totient is φ = 72395920.

The previous prime is 80117069. The next prime is 80117083. The reversal of 80117081 is 18071108.

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 80117081 - 2¹⁸ = 79854937 is a prime.

It is a super-2 number, since 2×80117081² = 12837493335921122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80117081.

It is not an unprimeable number, because it can be changed into a prime (80117083) 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, 19970 + ... + 23643.

It is an arithmetic number, because the mean of its divisors is an integer number (10990728).

Almost surely, 2^80117081 is an apocalyptic number.

It is an amenable number.

80117081 is a deficient number, since it is larger than the sum of its proper divisors (7808743).

80117081 is a wasteful number, since it uses less digits than its factorization.

80117081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43791.

The product of its (nonzero) digits is 448, while the sum is 26.

The square root of 80117081 is about 8950.8145439396. The cubic root of 80117081 is about 431.0970383515.

Adding to 80117081 its reverse (18071108), we get a palindrome (98188189).

The spelling of 80117081 in words is "eighty million, one hundred seventeen thousand, eighty-one".