139710128 has 20 divisors (see below), whose sum is σ = 271396320. Its totient is φ = 69672384.

The previous prime is 139710121. The next prime is 139710133. The reversal of 139710128 is 821017931.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 139710094 and 139710103.

It is not an unprimeable number, because it can be changed into a prime (139710121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5000 + ... + 17447.

It is an arithmetic number, because the mean of its divisors is an integer number (13569816).

Almost surely, 2^139710128 is an apocalyptic number.

It is an amenable number.

139710128 is a deficient number, since it is larger than the sum of its proper divisors (131686192).

139710128 is a wasteful number, since it uses less digits than its factorization.

139710128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22844 (or 22838 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 139710128 is about 11819.9038913182. The cubic root of 139710128 is about 518.8907914555.

The spelling of 139710128 in words is "one hundred thirty-nine million, seven hundred ten thousand, one hundred twenty-eight".