8012281 has 4 divisors (see below), whose sum is σ = 8434000. Its totient is φ = 7590564.

The previous prime is 8012269. The next prime is 8012299. The reversal of 8012281 is 1822108.

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 a de Polignac number, because none of the positive numbers 2^k-8012281 is a prime.

It is a super-2 number, since 2×8012281² = 128393293645922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8012201) 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 3 ways as a sum of consecutive naturals, for example, 210831 + ... + 210868.

It is an arithmetic number, because the mean of its divisors is an integer number (2108500).

Almost surely, 2^8012281 is an apocalyptic number.

It is an amenable number.

8012281 is a deficient number, since it is larger than the sum of its proper divisors (421719).

8012281 is a wasteful number, since it uses less digits than its factorization.

8012281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421718.

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 8012281 is about 2830.5972867930. The cubic root of 8012281 is about 200.1022893422.

Adding to 8012281 its reverse (1822108), we get a palindrome (9834389).

The spelling of 8012281 in words is "eight million, twelve thousand, two hundred eighty-one".