138833108 has 12 divisors (see below), whose sum is σ = 243824532. Its totient is φ = 69168960.

The previous prime is 138833081. The next prime is 138833141. The reversal of 138833108 is 801338831.

It can be written as a sum of positive squares in 2 ways, for example, as 31047184 + 107785924 = 5572^2 + 10382^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60635 + ... + 62882.

It is an arithmetic number, because the mean of its divisors is an integer number (20318711).

Almost surely, 2^138833108 is an apocalyptic number.

It is an amenable number.

138833108 is a deficient number, since it is larger than the sum of its proper divisors (104991424).

138833108 is a wasteful number, since it uses less digits than its factorization.

138833108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123802 (or 123800 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 138833108 is about 11782.7461994223. The cubic root of 138833108 is about 517.8027453657.

The spelling of 138833108 in words is "one hundred thirty-eight million, eight hundred thirty-three thousand, one hundred eight".