138037255 has 8 divisors (see below), whose sum is σ = 166431024. Its totient is φ = 109905600.

The previous prime is 138037247. The next prime is 138037271. The reversal of 138037255 is 552730831.

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

It is not a de Polignac number, because 138037255 - 2³ = 138037247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 138037255.

It is a congruent number.

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, 64366 + ... + 66475.

It is an arithmetic number, because the mean of its divisors is an integer number (20803878).

Almost surely, 2^138037255 is an apocalyptic number.

138037255 is a deficient number, since it is larger than the sum of its proper divisors (28393769).

138037255 is a wasteful number, since it uses less digits than its factorization.

138037255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131057.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 138037255 is about 11748.9256955689. The cubic root of 138037255 is about 516.8114236545.

The spelling of 138037255 in words is "one hundred thirty-eight million, thirty-seven thousand, two hundred fifty-five".