5723281 has 2 divisors, whose sum is σ = 5723282. Its totient is φ = 5723280.

The previous prime is 5723269. The next prime is 5723287. The reversal of 5723281 is 1823275.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5716881 + 6400 = 2391^2 + 80^2 .

It is a cyclic number.

It is not a de Polignac number, because 5723281 - 2¹³ = 5715089 is a prime.

It is a super-2 number, since 2×5723281² = 65511890809922, which contains 22 as substring.

It is a Chen prime.

5723281 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (5723287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2861640 + 2861641.

It is an arithmetic number, because the mean of its divisors is an integer number (2861641).

Almost surely, 2^5723281 is an apocalyptic number.

It is an amenable number.

5723281 is a deficient number, since it is larger than the sum of its proper divisors (1).

5723281 is an equidigital number, since it uses as much as digits as its factorization.

5723281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 28.

The square root of 5723281 is about 2392.3379777949. The cubic root of 5723281 is about 178.8744685440.

The spelling of 5723281 in words is "five million, seven hundred twenty-three thousand, two hundred eighty-one".