139130128 has 20 divisors (see below), whose sum is σ = 281285568. Its totient is φ = 66540320.

The previous prime is 139130099. The next prime is 139130137. The reversal of 139130128 is 821031931.

139130128 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 139130096 and 139130105.

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, 188668 + ... + 189403.

Almost surely, 2^139130128 is an apocalyptic number.

It is an amenable number.

139130128 is an abundant number, since it is smaller than the sum of its proper divisors (142155440).

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

139130128 is a wasteful number, since it uses less digits than its factorization.

139130128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378102 (or 378096 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 139130128 is about 11795.3434880041. The cubic root of 139130128 is about 518.1717452998.

The spelling of 139130128 in words is "one hundred thirty-nine million, one hundred thirty thousand, one hundred twenty-eight".