138771754501 has 4 divisors (see below), whose sum is σ = 138959538400. Its totient is φ = 138583970604.

The previous prime is 138771754481. The next prime is 138771754519. The reversal of 138771754501 is 105457177831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138771754501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138771754531) 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 3 ways as a sum of consecutive naturals, for example, 93890841 + ... + 93892318.

It is an arithmetic number, because the mean of its divisors is an integer number (34739884600).

Almost surely, 2^138771754501 is an apocalyptic number.

It is an amenable number.

138771754501 is a deficient number, since it is larger than the sum of its proper divisors (187783899).

138771754501 is an equidigital number, since it uses as much as digits as its factorization.

138771754501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187783898.

The product of its (nonzero) digits is 823200, while the sum is 49.

The spelling of 138771754501 in words is "one hundred thirty-eight billion, seven hundred seventy-one million, seven hundred fifty-four thousand, five hundred one".