80043281 has 4 divisors (see below), whose sum is σ = 80128752. Its totient is φ = 79957812.

The previous prime is 80043239. The next prime is 80043287. The reversal of 80043281 is 18234008.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80043281 - 2⁶ = 80043217 is a prime.

It is a super-2 number, since 2×80043281² = 12813853666489922, 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 80043281.

It is not an unprimeable number, because it can be changed into a prime (80043287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41315 + ... + 43208.

It is an arithmetic number, because the mean of its divisors is an integer number (20032188).

Almost surely, 2^80043281 is an apocalyptic number.

It is an amenable number.

80043281 is a deficient number, since it is larger than the sum of its proper divisors (85471).

80043281 is an equidigital number, since it uses as much as digits as its factorization.

80043281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85470.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 80043281 is about 8946.6910642986. The cubic root of 80043281 is about 430.9646290706.

Adding to 80043281 its reverse (18234008), we get a palindrome (98277289).

The spelling of 80043281 in words is "eighty million, forty-three thousand, two hundred eighty-one".