139008236 has 12 divisors (see below), whose sum is σ = 243527928. Its totient is φ = 69428832.

The previous prime is 139008227. The next prime is 139008253. The reversal of 139008236 is 632800931.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14561 + ... + 22136.

It is an arithmetic number, because the mean of its divisors is an integer number (20293994).

Almost surely, 2^139008236 is an apocalyptic number.

It is an amenable number.

139008236 is a deficient number, since it is larger than the sum of its proper divisors (104519692).

139008236 is a wasteful number, since it uses less digits than its factorization.

139008236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37648 (or 37646 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 139008236 is about 11790.1754015791. The cubic root of 139008236 is about 518.0203775469.

The spelling of 139008236 in words is "one hundred thirty-nine million, eight thousand, two hundred thirty-six".