138041286 has 16 divisors (see below), whose sum is σ = 276549168. Its totient is φ = 45936000.

The previous prime is 138041263. The next prime is 138041291. The reversal of 138041286 is 682140831.

138041286 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 15535 + ... + 22746.

It is an arithmetic number, because the mean of its divisors is an integer number (17284323).

Almost surely, 2^138041286 is an apocalyptic number.

138041286 is an abundant number, since it is smaller than the sum of its proper divisors (138507882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138041286 is a wasteful number, since it uses less digits than its factorization.

138041286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38887.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 138041286 is about 11749.0972419161. The cubic root of 138041286 is about 516.8164542929.

The spelling of 138041286 in words is "one hundred thirty-eight million, forty-one thousand, two hundred eighty-six".