138700108 has 6 divisors (see below), whose sum is σ = 242725196. Its totient is φ = 69350052.

The previous prime is 138700103. The next prime is 138700157. The reversal of 138700108 is 801007831.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (138700103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17337510 + ... + 17337517.

Almost surely, 2^138700108 is an apocalyptic number.

It is an amenable number.

138700108 is a deficient number, since it is larger than the sum of its proper divisors (104025088).

138700108 is a wasteful number, since it uses less digits than its factorization.

138700108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34675031 (or 34675029 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 138700108 is about 11777.1010015199. The cubic root of 138700108 is about 517.6373434927.

Adding to 138700108 its reverse (801007831), we get a palindrome (939707939).

The spelling of 138700108 in words is "one hundred thirty-eight million, seven hundred thousand, one hundred eight".