63530138 has 16 divisors (see below), whose sum is σ = 110756160. Its totient is φ = 26765376.

The previous prime is 63530123. The next prime is 63530149. The reversal of 63530138 is 83103536.

63530138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 63530138.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 37631 + ... + 39282.

It is an arithmetic number, because the mean of its divisors is an integer number (6922260).

Almost surely, 2^63530138 is an apocalyptic number.

63530138 is a deficient number, since it is larger than the sum of its proper divisors (47226022).

63530138 is a wasteful number, since it uses less digits than its factorization.

63530138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76981.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 63530138 is about 7970.5795272364. The cubic root of 63530138 is about 399.0187155037.

The spelling of 63530138 in words is "sixty-three million, five hundred thirty thousand, one hundred thirty-eight".