138596008 has 8 divisors (see below), whose sum is σ = 259867530. Its totient is φ = 69298000.

The previous prime is 138595993. The next prime is 138596011. The reversal of 138596008 is 800695831.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 133587364 + 5008644 = 11558^2 + 2238^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8662243 + ... + 8662258.

Almost surely, 2^138596008 is an apocalyptic number.

It is an amenable number.

138596008 is a deficient number, since it is larger than the sum of its proper divisors (121271522).

138596008 is a wasteful number, since it uses less digits than its factorization.

138596008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17324507 (or 17324503 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 138596008 is about 11772.6805783560. The cubic root of 138596008 is about 517.5078085436.

The spelling of 138596008 in words is "one hundred thirty-eight million, five hundred ninety-six thousand, eight".