138234608 has 10 divisors (see below), whose sum is σ = 267829584. Its totient is φ = 69117296.

The previous prime is 138234583. The next prime is 138234617. The reversal of 138234608 is 806432831.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4319816 + ... + 4319847.

Almost surely, 2^138234608 is an apocalyptic number.

It is an amenable number.

138234608 is a deficient number, since it is larger than the sum of its proper divisors (129594976).

138234608 is an equidigital number, since it uses as much as digits as its factorization.

138234608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8639671 (or 8639665 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 138234608 is about 11757.3214636668. The cubic root of 138234608 is about 517.0576028861.

The spelling of 138234608 in words is "one hundred thirty-eight million, two hundred thirty-four thousand, six hundred eight".