138195136093 has 16 divisors (see below), whose sum is σ = 159303602304. Its totient is φ = 117430073280.

The previous prime is 138195136091. The next prime is 138195136097. The reversal of 138195136093 is 390631591831.

It is a cyclic number.

It is not a de Polignac number, because 138195136093 - 2¹ = 138195136091 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138195136091) 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 in 15 ways as a sum of consecutive naturals, for example, 838671 + ... + 989827.

It is an arithmetic number, because the mean of its divisors is an integer number (9956475144).

Almost surely, 2^138195136093 is an apocalyptic number.

It is an amenable number.

138195136093 is a deficient number, since it is larger than the sum of its proper divisors (21108466211).

138195136093 is a wasteful number, since it uses less digits than its factorization.

138195136093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152292.

The product of its (nonzero) digits is 524880, while the sum is 49.

The spelling of 138195136093 in words is "one hundred thirty-eight billion, one hundred ninety-five million, one hundred thirty-six thousand, ninety-three".