139648036 has 18 divisors (see below), whose sum is σ = 268621430. Its totient is φ = 63476160.

The previous prime is 139648007. The next prime is 139648049. The reversal of 139648036 is 630846931.

139648036 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 138532900 + 1115136 = 11770^2 + 1056^2 .

139648036 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 139648036.

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 5 ways as a sum of consecutive naturals, for example, 143781 + ... + 144748.

Almost surely, 2^139648036 is an apocalyptic number.

It is an amenable number.

139648036 is a deficient number, since it is larger than the sum of its proper divisors (128973394).

139648036 is a wasteful number, since it uses less digits than its factorization.

139648036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288555 (or 288542 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 139648036 is about 11817.2770129163. The cubic root of 139648036 is about 518.8139090759.

The spelling of 139648036 in words is "one hundred thirty-nine million, six hundred forty-eight thousand, thirty-six".