138588474 has 8 divisors (see below), whose sum is σ = 277176960. Its totient is φ = 46196156.

The previous prime is 138588473. The next prime is 138588491. The reversal of 138588474 is 474885831.

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

138588474 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (138588473) by changing a digit.

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, 11549034 + ... + 11549045.

It is an arithmetic number, because the mean of its divisors is an integer number (34647120).

Almost surely, 2^138588474 is an apocalyptic number.

138588474 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.

138588474 is a wasteful number, since it uses less digits than its factorization.

138588474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23098084.

The product of its digits is 860160, while the sum is 48.

The square root of 138588474 is about 11772.3605959043. The cubic root of 138588474 is about 517.4984312305.

The spelling of 138588474 in words is "one hundred thirty-eight million, five hundred eighty-eight thousand, four hundred seventy-four".