139516317 has 16 divisors (see below), whose sum is σ = 211733760. Its totient is φ = 90741600.

The previous prime is 139516301. The next prime is 139516319. The reversal of 139516317 is 713615931.

139516317 is a `hidden beast` number, since 13 + 9 + 5 + 1 + 631 + 7 = 666.

It is not a de Polignac number, because 139516317 - 2⁴ = 139516301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139516319) 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 15 ways as a sum of consecutive naturals, for example, 61909 + ... + 64122.

It is an arithmetic number, because the mean of its divisors is an integer number (13233360).

Almost surely, 2^139516317 is an apocalyptic number.

It is an amenable number.

139516317 is a deficient number, since it is larger than the sum of its proper divisors (72217443).

139516317 is a wasteful number, since it uses less digits than its factorization.

139516317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126081 (or 126075 counting only the distinct ones).

The product of its digits is 17010, while the sum is 36.

The square root of 139516317 is about 11811.7025445107. The cubic root of 139516317 is about 518.6507389893.

The spelling of 139516317 in words is "one hundred thirty-nine million, five hundred sixteen thousand, three hundred seventeen".