139380128 has 24 divisors (see below), whose sum is σ = 275254560. Its totient is φ = 69474240.

The previous prime is 139380121. The next prime is 139380133. The reversal of 139380128 is 821083931.

It is not an unprimeable number, because it can be changed into a prime (139380121) by changing a digit.

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, 4013 + ... + 17171.

It is an arithmetic number, because the mean of its divisors is an integer number (11468940).

Almost surely, 2^139380128 is an apocalyptic number.

It is an amenable number.

139380128 is a deficient number, since it is larger than the sum of its proper divisors (135874432).

139380128 is a wasteful number, since it uses less digits than its factorization.

139380128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13500 (or 13492 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 139380128 is about 11805.9361339963. The cubic root of 139380128 is about 518.4819235589.

The spelling of 139380128 in words is "one hundred thirty-nine million, three hundred eighty thousand, one hundred twenty-eight".