138122484 has 48 divisors (see below), whose sum is σ = 352267776. Its totient is φ = 41932800.

The previous prime is 138122473. The next prime is 138122489. The reversal of 138122484 is 484221831.

138122484 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138122489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4597 + ... + 17244.

It is an arithmetic number, because the mean of its divisors is an integer number (7338912).

Almost surely, 2^138122484 is an apocalyptic number.

It is an amenable number.

138122484 is an abundant number, since it is smaller than the sum of its proper divisors (214145292).

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

138122484 is a wasteful number, since it uses less digits than its factorization.

138122484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21896 (or 21894 counting only the distinct ones).

The product of its digits is 12288, while the sum is 33.

The square root of 138122484 is about 11752.5522334513. The cubic root of 138122484 is about 516.9177675505.

The spelling of 138122484 in words is "one hundred thirty-eight million, one hundred twenty-two thousand, four hundred eighty-four".