138101134437 has 20 divisors (see below), whose sum is σ = 235770544416. Its totient is φ = 78914933640.

The previous prime is 138101134361. The next prime is 138101134453. The reversal of 138101134437 is 734431101831.

It is a happy number.

138101134437 is a `hidden beast` number, since 13 + 81 + 0 + 1 + 134 + 437 = 666.

It is not a de Polignac number, because 138101134437 - 2¹² = 138101130341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138101134477) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 121781739 + ... + 121782872.

Almost surely, 2^138101134437 is an apocalyptic number.

It is an amenable number.

138101134437 is a deficient number, since it is larger than the sum of its proper divisors (97669409979).

138101134437 is an equidigital number, since it uses as much as digits as its factorization.

138101134437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243564630 (or 243564621 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 138101134437 in words is "one hundred thirty-eight billion, one hundred one million, one hundred thirty-four thousand, four hundred thirty-seven".