80681271 has 8 divisors (see below), whose sum is σ = 117354624. Its totient is φ = 48897720.

The previous prime is 80681267. The next prime is 80681273. The reversal of 80681271 is 17218608.

It is a happy number.

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

It is not a de Polignac number, because 80681271 - 2² = 80681267 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 2444887 = 80681271 / (8 + 0 + 6 + 8 + 1 + 2 + 7 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80681273) 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, 1222411 + ... + 1222476.

It is an arithmetic number, because the mean of its divisors is an integer number (14669328).

Almost surely, 2^80681271 is an apocalyptic number.

80681271 is a deficient number, since it is larger than the sum of its proper divisors (36673353).

80681271 is a wasteful number, since it uses less digits than its factorization.

80681271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444901.

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 80681271 is about 8982.2753798801. The cubic root of 80681271 is about 432.1066105622.

Adding to 80681271 its reverse (17218608), we get a palindrome (97899879).

It can be divided in two parts, 8068 and 1271, that added together give a palindrome (9339).

The spelling of 80681271 in words is "eighty million, six hundred eighty-one thousand, two hundred seventy-one".