138485586 has 8 divisors (see below), whose sum is σ = 276971184. Its totient is φ = 46161860.

The previous prime is 138485579. The next prime is 138485591. The reversal of 138485586 is 685584831.

It is a sphenic number, since it is the product of 3 distinct primes.

138485586 is an admirable number.

It is a Curzon number.

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 in 3 ways as a sum of consecutive naturals, for example, 11540460 + ... + 11540471.

It is an arithmetic number, because the mean of its divisors is an integer number (34621398).

Almost surely, 2^138485586 is an apocalyptic number.

138485586 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138485586 is a wasteful number, since it uses less digits than its factorization.

138485586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23080936.

The product of its digits is 921600, while the sum is 48.

The square root of 138485586 is about 11767.9898878271. The cubic root of 138485586 is about 517.3703360177.

The spelling of 138485586 in words is "one hundred thirty-eight million, four hundred eighty-five thousand, five hundred eighty-six".