985341281 has 2 divisors, whose sum is σ = 985341282. Its totient is φ = 985341280.

The previous prime is 985341277. The next prime is 985341307. The reversal of 985341281 is 182143589.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 836135056 + 149206225 = 28916^2 + 12215^2 .

It is a cyclic number.

It is not a de Polignac number, because 985341281 - 2² = 985341277 is a prime.

It is a super-2 number, since 2×985341281² = 1941794880085441922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (985341211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492670640 + 492670641.

It is an arithmetic number, because the mean of its divisors is an integer number (492670641).

Almost surely, 2^985341281 is an apocalyptic number.

It is an amenable number.

985341281 is a deficient number, since it is larger than the sum of its proper divisors (1).

985341281 is an equidigital number, since it uses as much as digits as its factorization.

985341281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 41.

The square root of 985341281 is about 31390.1462405004. The cubic root of 985341281 is about 995.0896886401.

The spelling of 985341281 in words is "nine hundred eighty-five million, three hundred forty-one thousand, two hundred eighty-one".