138900395 has 8 divisors (see below), whose sum is σ = 167054400. Its totient is φ = 110871040.

The previous prime is 138900389. The next prime is 138900403. The reversal of 138900395 is 593009831.

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

It is not a de Polignac number, because 138900395 - 2¹⁸ = 138638251 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28691 + ... + 33180.

It is an arithmetic number, because the mean of its divisors is an integer number (20881800).

Almost surely, 2^138900395 is an apocalyptic number.

138900395 is a deficient number, since it is larger than the sum of its proper divisors (28154005).

138900395 is an equidigital number, since it uses as much as digits as its factorization.

138900395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62325.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 138900395 is about 11785.6011726174. The cubic root of 138900395 is about 517.8863847957.

The spelling of 138900395 in words is "one hundred thirty-eight million, nine hundred thousand, three hundred ninety-five".