80268281 has 8 divisors (see below), whose sum is σ = 82649544. Its totient is φ = 77898240.

The previous prime is 80268277. The next prime is 80268289. The reversal of 80268281 is 18286208.

It can be written as a sum of positive squares in 4 ways, for example, as 8357881 + 71910400 = 2891^2 + 8480^2 .

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 80268281 - 2² = 80268277 is a prime.

It is a super-2 number, since 2×80268281² = 12885993869389922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80268289) 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, 13001 + ... + 18153.

It is an arithmetic number, because the mean of its divisors is an integer number (10331193).

Almost surely, 2^80268281 is an apocalyptic number.

It is an amenable number.

80268281 is a deficient number, since it is larger than the sum of its proper divisors (2381263).

80268281 is a wasteful number, since it uses less digits than its factorization.

80268281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5611.

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 80268281 is about 8959.2567214027. The cubic root of 80268281 is about 431.3680621654.

The spelling of 80268281 in words is "eighty million, two hundred sixty-eight thousand, two hundred eighty-one".