63135866 has 8 divisors (see below), whose sum is σ = 94796244. Its totient is φ = 31537120.

The previous prime is 63135857. The next prime is 63135869. The reversal of 63135866 is 66853136.

63135866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 53655625 + 9480241 = 7325^2 + 3079^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×63135866² = 7972275151139912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63135869) 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 in 3 ways as a sum of consecutive naturals, for example, 12755 + ... + 16998.

Almost surely, 2^63135866 is an apocalyptic number.

63135866 is a deficient number, since it is larger than the sum of its proper divisors (31660378).

63135866 is a wasteful number, since it uses less digits than its factorization.

63135866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30816.

The product of its digits is 77760, while the sum is 38.

The square root of 63135866 is about 7945.8080772191. The cubic root of 63135866 is about 398.1915569898.

It can be divided in two parts, 63 and 135866, that multiplied together give a palindrome (8559558).

The spelling of 63135866 in words is "sixty-three million, one hundred thirty-five thousand, eight hundred sixty-six".