138157000831 has 2 divisors, whose sum is σ = 138157000832. Its totient is φ = 138157000830.

The previous prime is 138157000811. The next prime is 138157000847. The reversal of 138157000831 is 138000751831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138157000831 - 2¹¹ = 138156998783 is a prime.

It is a super-2 number, since 2×138157000831² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138157000811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69078500415 + 69078500416.

It is an arithmetic number, because the mean of its divisors is an integer number (69078500416).

Almost surely, 2^138157000831 is an apocalyptic number.

138157000831 is a deficient number, since it is larger than the sum of its proper divisors (1).

138157000831 is an equidigital number, since it uses as much as digits as its factorization.

138157000831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 37.

The spelling of 138157000831 in words is "one hundred thirty-eight billion, one hundred fifty-seven million, eight hundred thirty-one", and thus it is an aban number.