63205117 has 2 divisors, whose sum is σ = 63205118. Its totient is φ = 63205116.

The previous prime is 63205111. The next prime is 63205169. The reversal of 63205117 is 71150236.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52142841 + 11062276 = 7221^2 + 3326^2 .

It is a cyclic number.

It is not a de Polignac number, because 63205117 - 2¹¹ = 63203069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63205091 and 63205100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63205111) 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, 31602558 + 31602559.

It is an arithmetic number, because the mean of its divisors is an integer number (31602559).

Almost surely, 2^63205117 is an apocalyptic number.

It is an amenable number.

63205117 is a deficient number, since it is larger than the sum of its proper divisors (1).

63205117 is an equidigital number, since it uses as much as digits as its factorization.

63205117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 63205117 is about 7950.1645894912. The cubic root of 63205117 is about 398.3370901571.

The spelling of 63205117 in words is "sixty-three million, two hundred five thousand, one hundred seventeen".