5313281 has 4 divisors (see below), whose sum is σ = 5318100. Its totient is φ = 5308464.

The previous prime is 5313277. The next prime is 5313317. The reversal of 5313281 is 1823135.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1823135 = 5 ⋅364627.

It can be written as a sum of positive squares in 2 ways, for example, as 970225 + 4343056 = 985^2 + 2084^2 .

It is a cyclic number.

It is not a de Polignac number, because 5313281 - 2² = 5313277 is a prime.

It is a super-2 number, since 2×5313281² = 56461909969922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5313221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155 + ... + 3263.

It is an arithmetic number, because the mean of its divisors is an integer number (1329525).

Almost surely, 2^5313281 is an apocalyptic number.

It is an amenable number.

5313281 is a deficient number, since it is larger than the sum of its proper divisors (4819).

5313281 is a wasteful number, since it uses less digits than its factorization.

5313281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4818.

The product of its digits is 720, while the sum is 23.

The square root of 5313281 is about 2305.0555307845. The cubic root of 5313281 is about 174.4968513648.

The spelling of 5313281 in words is "five million, three hundred thirteen thousand, two hundred eighty-one".