5135281 has 2 divisors, whose sum is σ = 5135282. Its totient is φ = 5135280.

The previous prime is 5135257. The next prime is 5135297. The reversal of 5135281 is 1825315.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3936256 + 1199025 = 1984^2 + 1095^2 .

It is a cyclic number.

It is not a de Polignac number, because 5135281 - 2⁷ = 5135153 is a prime.

It is a super-2 number, since 2×5135281² = 52742221897922, which contains 22 as substring.

5135281 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (5135201) 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 as a sum of consecutive naturals, namely, 2567640 + 2567641.

It is an arithmetic number, because the mean of its divisors is an integer number (2567641).

Almost surely, 2^5135281 is an apocalyptic number.

It is an amenable number.

5135281 is a deficient number, since it is larger than the sum of its proper divisors (1).

5135281 is an equidigital number, since it uses as much as digits as its factorization.

5135281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1200, while the sum is 25.

The square root of 5135281 is about 2266.1158399340. The cubic root of 5135281 is about 172.5260732135.

The spelling of 5135281 in words is "five million, one hundred thirty-five thousand, two hundred eighty-one".