138804127 has 8 divisors (see below), whose sum is σ = 173054592. Its totient is φ = 108159000.

The previous prime is 138804109. The next prime is 138804151. The reversal of 138804127 is 721408831.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 138804127 - 2¹⁵ = 138771359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138804092 and 138804101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138804157) 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 7 ways as a sum of consecutive naturals, for example, 901249 + ... + 901402.

It is an arithmetic number, because the mean of its divisors is an integer number (21631824).

Almost surely, 2^138804127 is an apocalyptic number.

138804127 is a deficient number, since it is larger than the sum of its proper divisors (34250465).

138804127 is a wasteful number, since it uses less digits than its factorization.

138804127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802669.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 138804127 is about 11781.5163285547. The cubic root of 138804127 is about 517.7667129286.

The spelling of 138804127 in words is "one hundred thirty-eight million, eight hundred four thousand, one hundred twenty-seven".