138144295 has 8 divisors (see below), whose sum is σ = 175524624. Its totient is φ = 104014464.

The previous prime is 138144271. The next prime is 138144299. The reversal of 138144295 is 592441831.

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 138144295 - 2⁹ = 138143783 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 (138144299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 812529 + ... + 812698.

It is an arithmetic number, because the mean of its divisors is an integer number (21940578).

Almost surely, 2^138144295 is an apocalyptic number.

138144295 is a deficient number, since it is larger than the sum of its proper divisors (37380329).

138144295 is a wasteful number, since it uses less digits than its factorization.

138144295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625249.

The product of its digits is 34560, while the sum is 37.

The square root of 138144295 is about 11753.4801229253. The cubic root of 138144295 is about 516.9449750447.

The spelling of 138144295 in words is "one hundred thirty-eight million, one hundred forty-four thousand, two hundred ninety-five".