138060655 has 16 divisors (see below), whose sum is σ = 176196384. Its totient is φ = 103490560.

The previous prime is 138060647. The next prime is 138060683. The reversal of 138060655 is 556060831.

It is not a de Polignac number, because 138060655 - 2³ = 138060647 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 138060655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16320 + ... + 23290.

It is an arithmetic number, because the mean of its divisors is an integer number (11012274).

Almost surely, 2^138060655 is an apocalyptic number.

138060655 is a deficient number, since it is larger than the sum of its proper divisors (38135729).

138060655 is a wasteful number, since it uses less digits than its factorization.

138060655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7226.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 138060655 is about 11749.9214890994. The cubic root of 138060655 is about 516.8406252011.

The spelling of 138060655 in words is "one hundred thirty-eight million, sixty thousand, six hundred fifty-five".