63139244 has 18 divisors (see below), whose sum is σ = 128533860. Its totient is φ = 27059592.

The previous prime is 63139229. The next prime is 63139253. The reversal of 63139244 is 44293136.

It is a self number, because there is not a number n which added to its sum of digits gives 63139244.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 160874 + ... + 161265.

It is an arithmetic number, because the mean of its divisors is an integer number (7140770).

Almost surely, 2^63139244 is an apocalyptic number.

It is an amenable number.

63139244 is an abundant number, since it is smaller than the sum of its proper divisors (65394616).

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

63139244 is a wasteful number, since it uses less digits than its factorization.

63139244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322157 (or 322148 counting only the distinct ones).

The product of its digits is 15552, while the sum is 32.

The square root of 63139244 is about 7946.0206392886. The cubic root of 63139244 is about 398.1986584319.

The spelling of 63139244 in words is "sixty-three million, one hundred thirty-nine thousand, two hundred forty-four".