139384712 has 16 divisors (see below), whose sum is σ = 261472860. Its totient is φ = 69658624.

The previous prime is 139384697. The next prime is 139384799. The reversal of 139384712 is 217483931.

139384712 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 95374756 + 44009956 = 9766^2 + 6634^2 .

It is an unprimeable number.

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, 26528 + ... + 31344.

Almost surely, 2^139384712 is an apocalyptic number.

It is an amenable number.

139384712 is a deficient number, since it is larger than the sum of its proper divisors (122088148).

139384712 is a wasteful number, since it uses less digits than its factorization.

139384712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8440 (or 8436 counting only the distinct ones).

The product of its digits is 36288, while the sum is 38.

The square root of 139384712 is about 11806.1302720239. The cubic root of 139384712 is about 518.4876075234.

The spelling of 139384712 in words is "one hundred thirty-nine million, three hundred eighty-four thousand, seven hundred twelve".