138030584 has 8 divisors (see below), whose sum is σ = 258807360. Its totient is φ = 69015288.

The previous prime is 138030583. The next prime is 138030589. The reversal of 138030584 is 485030831.

It is a happy number.

138030584 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 138030584.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138030583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8626904 + ... + 8626919.

It is an arithmetic number, because the mean of its divisors is an integer number (32350920).

Almost surely, 2^138030584 is an apocalyptic number.

It is an amenable number.

138030584 is a deficient number, since it is larger than the sum of its proper divisors (120776776).

138030584 is a wasteful number, since it uses less digits than its factorization.

138030584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17253829 (or 17253825 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 138030584 is about 11748.6417938415. The cubic root of 138030584 is about 516.8030981133.

The spelling of 138030584 in words is "one hundred thirty-eight million, thirty thousand, five hundred eighty-four".