138895095 has 16 divisors (see below), whose sum is σ = 224311680. Its totient is φ = 73384224.

The previous prime is 138895093. The next prime is 138895157. The reversal of 138895095 is 590598831.

It is not a de Polignac number, because 138895095 - 2¹ = 138895093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138895093) 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, 41665 + ... + 44874.

It is an arithmetic number, because the mean of its divisors is an integer number (14019480).

Almost surely, 2^138895095 is an apocalyptic number.

138895095 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

138895095 is a deficient number, since it is larger than the sum of its proper divisors (85416585).

138895095 is a wasteful number, since it uses less digits than its factorization.

138895095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86654.

The product of its (nonzero) digits is 388800, while the sum is 48.

The square root of 138895095 is about 11785.3763198296. The cubic root of 138895095 is about 517.8797977428.

The spelling of 138895095 in words is "one hundred thirty-eight million, eight hundred ninety-five thousand, ninety-five".