260538281 has 2 divisors, whose sum is σ = 260538282. Its totient is φ = 260538280.

The previous prime is 260538211. The next prime is 260538293. The reversal of 260538281 is 182835062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 260531881 + 6400 = 16141^2 + 80^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-260538281 is a prime.

It is a super-2 number, since 2×260538281² = 135760391732869922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (260538211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130269140 + 130269141.

It is an arithmetic number, because the mean of its divisors is an integer number (130269141).

Almost surely, 2^260538281 is an apocalyptic number.

It is an amenable number.

260538281 is a deficient number, since it is larger than the sum of its proper divisors (1).

260538281 is an equidigital number, since it uses as much as digits as its factorization.

260538281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 260538281 is about 16141.1982516788. The cubic root of 260538281 is about 638.6905853491.

The spelling of 260538281 in words is "two hundred sixty million, five hundred thirty-eight thousand, two hundred eighty-one".