63273138 has 16 divisors (see below), whose sum is σ = 132048576. Its totient is φ = 20174000.

The previous prime is 63273113. The next prime is 63273169. The reversal of 63273138 is 83137236.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 63273099 and 63273108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229113 + ... + 229388.

It is an arithmetic number, because the mean of its divisors is an integer number (8253036).

Almost surely, 2^63273138 is an apocalyptic number.

63273138 is an abundant number, since it is smaller than the sum of its proper divisors (68775438).

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

63273138 is a wasteful number, since it uses less digits than its factorization.

63273138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458529.

The product of its digits is 18144, while the sum is 33.

The square root of 63273138 is about 7954.4414008779. The cubic root of 63273138 is about 398.4799349898.

The spelling of 63273138 in words is "sixty-three million, two hundred seventy-three thousand, one hundred thirty-eight".