63219138 has 8 divisors (see below), whose sum is σ = 126438288. Its totient is φ = 21073044.

The previous prime is 63219133. The next prime is 63219179. The reversal of 63219138 is 83191236.

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

63219138 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 63219099 and 63219108.

It is not an unprimeable number, because it can be changed into a prime (63219133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5268256 + ... + 5268267.

It is an arithmetic number, because the mean of its divisors is an integer number (15804786).

Almost surely, 2^63219138 is an apocalyptic number.

63219138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63219138 is a wasteful number, since it uses less digits than its factorization.

63219138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10536528.

The product of its digits is 7776, while the sum is 33.

The square root of 63219138 is about 7951.0463462364. The cubic root of 63219138 is about 398.3665427904.

The spelling of 63219138 in words is "sixty-three million, two hundred nineteen thousand, one hundred thirty-eight".