5031281 has 2 divisors, whose sum is σ = 5031282. Its totient is φ = 5031280.

The previous prime is 5031253. The next prime is 5031287. The reversal of 5031281 is 1821305.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4950625 + 80656 = 2225^2 + 284^2 .

It is a cyclic number.

It is not a de Polignac number, because 5031281 - 2⁶ = 5031217 is a prime.

It is a super-2 number, since 2×5031281² = 50627577001922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5031287) 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, 2515640 + 2515641.

It is an arithmetic number, because the mean of its divisors is an integer number (2515641).

Almost surely, 2^5031281 is an apocalyptic number.

It is an amenable number.

5031281 is a deficient number, since it is larger than the sum of its proper divisors (1).

5031281 is an equidigital number, since it uses as much as digits as its factorization.

5031281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 5031281 is about 2243.0517158550. The cubic root of 5031281 is about 171.3534519753.

Adding to 5031281 its reverse (1821305), we get a palindrome (6852586).

The spelling of 5031281 in words is "five million, thirty-one thousand, two hundred eighty-one".