63139436 has 24 divisors (see below), whose sum is σ = 114379776. Its totient is φ = 30465360.

The previous prime is 63139423. The next prime is 63139441. The reversal of 63139436 is 63493136.

It is a junction number, because it is equal to n+sod(n) for n = 63139396 and 63139405.

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, 79835 + ... + 80621.

It is an arithmetic number, because the mean of its divisors is an integer number (4765824).

Almost surely, 2^63139436 is an apocalyptic number.

It is an amenable number.

63139436 is a deficient number, since it is larger than the sum of its proper divisors (51240340).

63139436 is a wasteful number, since it uses less digits than its factorization.

63139436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469 (or 1467 counting only the distinct ones).

The product of its digits is 34992, while the sum is 35.

The square root of 63139436 is about 7946.0327207985. The cubic root of 63139436 is about 398.1990620587.

The spelling of 63139436 in words is "sixty-three million, one hundred thirty-nine thousand, four hundred thirty-six".