63131017 has 2 divisors, whose sum is σ = 63131018. Its totient is φ = 63131016.

The previous prime is 63130997. The next prime is 63131023. The reversal of 63131017 is 71013136.

63131017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35473936 + 27657081 = 5956^2 + 5259^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63131017 is a prime.

It is not a weakly prime, because it can be changed into another prime (63131317) 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, 31565508 + 31565509.

It is an arithmetic number, because the mean of its divisors is an integer number (31565509).

Almost surely, 2^63131017 is an apocalyptic number.

It is an amenable number.

63131017 is a deficient number, since it is larger than the sum of its proper divisors (1).

63131017 is an equidigital number, since it uses as much as digits as its factorization.

63131017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 63131017 is about 7945.5029419163. The cubic root of 63131017 is about 398.1813626770.

The spelling of 63131017 in words is "sixty-three million, one hundred thirty-one thousand, seventeen".