8313281 has 4 divisors (see below), whose sum is σ = 8674752. Its totient is φ = 7951812.

The previous prime is 8313269. The next prime is 8313353. The reversal of 8313281 is 1823138.

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 8313281 - 2¹⁰ = 8312257 is a prime.

It is a super-2 number, since 2×8313281² = 138221281969922, which contains 22 as substring.

It is an Ulam number.

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 8313281.

It is not an unprimeable number, because it can be changed into a prime (8313251) 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, 180701 + ... + 180746.

It is an arithmetic number, because the mean of its divisors is an integer number (2168688).

Almost surely, 2^8313281 is an apocalyptic number.

It is an amenable number.

8313281 is a deficient number, since it is larger than the sum of its proper divisors (361471).

8313281 is a wasteful number, since it uses less digits than its factorization.

8313281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361470.

The product of its digits is 1152, while the sum is 26.

The square root of 8313281 is about 2883.2760880637. The cubic root of 8313281 is about 202.5773194551.

The spelling of 8313281 in words is "eight million, three hundred thirteen thousand, two hundred eighty-one".