63116281 has 2 divisors, whose sum is σ = 63116282. Its totient is φ = 63116280.

The previous prime is 63116227. The next prime is 63116297. The reversal of 63116281 is 18261136.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45968400 + 17147881 = 6780^2 + 4141^2 .

It is a cyclic number.

It is not a de Polignac number, because 63116281 - 2¹⁵ = 63083513 is a prime.

It is a super-2 number, since 2×63116281² = 7967329854541922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (63116201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31558140 + 31558141.

It is an arithmetic number, because the mean of its divisors is an integer number (31558141).

Almost surely, 2^63116281 is an apocalyptic number.

It is an amenable number.

63116281 is a deficient number, since it is larger than the sum of its proper divisors (1).

63116281 is an equidigital number, since it uses as much as digits as its factorization.

63116281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 28.

The square root of 63116281 is about 7944.5755707904. The cubic root of 63116281 is about 398.1503791899.

The spelling of 63116281 in words is "sixty-three million, one hundred sixteen thousand, two hundred eighty-one".