138600504 has 128 divisors (see below), whose sum is σ = 454348800. Its totient is φ = 38309760.

The previous prime is 138600503. The next prime is 138600529. The reversal of 138600504 is 405006831.

138600504 is a `hidden beast` number, since 1 + 3 + 8 + 600 + 50 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138600503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45394 + ... + 48350.

It is an arithmetic number, because the mean of its divisors is an integer number (3549600).

Almost surely, 2^138600504 is an apocalyptic number.

138600504 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 138600504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227174400).

138600504 is an abundant number, since it is smaller than the sum of its proper divisors (315748296).

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

138600504 is a wasteful number, since it uses less digits than its factorization.

138600504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3010 (or 3000 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 138600504 is about 11772.8715273717. The cubic root of 138600504 is about 517.5134043997.

The spelling of 138600504 in words is "one hundred thirty-eight million, six hundred thousand, five hundred four".