138788588 has 6 divisors (see below), whose sum is σ = 242880036. Its totient is φ = 69394292.

The previous prime is 138788539. The next prime is 138788627. The reversal of 138788588 is 885887831.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17348570 + ... + 17348577.

It is an arithmetic number, because the mean of its divisors is an integer number (40480006).

Almost surely, 2^138788588 is an apocalyptic number.

It is an amenable number.

138788588 is a deficient number, since it is larger than the sum of its proper divisors (104091448).

138788588 is a wasteful number, since it uses less digits than its factorization.

138788588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34697151 (or 34697149 counting only the distinct ones).

The product of its digits is 3440640, while the sum is 56.

The square root of 138788588 is about 11780.8568448988. The cubic root of 138788588 is about 517.7473910315.

The spelling of 138788588 in words is "one hundred thirty-eight million, seven hundred eighty-eight thousand, five hundred eighty-eight".