138512163139 has 16 divisors (see below), whose sum is σ = 160912558080. Its totient is φ = 116765436960.

The previous prime is 138512163137. The next prime is 138512163143. The reversal of 138512163139 is 931361215831.

It is a cyclic number.

It is not a de Polignac number, because 138512163139 - 2¹ = 138512163137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138512163095 and 138512163104.

It is not an unprimeable number, because it can be changed into a prime (138512163137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7635522 + ... + 7653640.

It is an arithmetic number, because the mean of its divisors is an integer number (10057034880).

Almost surely, 2^138512163139 is an apocalyptic number.

138512163139 is a deficient number, since it is larger than the sum of its proper divisors (22400394941).

138512163139 is a wasteful number, since it uses less digits than its factorization.

138512163139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36090.

The product of its digits is 116640, while the sum is 43.

The spelling of 138512163139 in words is "one hundred thirty-eight billion, five hundred twelve million, one hundred sixty-three thousand, one hundred thirty-nine".