138537348 has 12 divisors (see below), whose sum is σ = 323253840. Its totient is φ = 46179112.

The previous prime is 138537337. The next prime is 138537353. The reversal of 138537348 is 843735831.

138537348 is digitally balanced in base 3, 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 (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5772378 + ... + 5772401.

It is an arithmetic number, because the mean of its divisors is an integer number (26937820).

Almost surely, 2^138537348 is an apocalyptic number.

It is an amenable number.

138537348 is an abundant number, since it is smaller than the sum of its proper divisors (184716492).

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

138537348 is a wasteful number, since it uses less digits than its factorization.

138537348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11544786 (or 11544784 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 138537348 is about 11770.1889534536. The cubic root of 138537348 is about 517.4347874605.

The spelling of 138537348 in words is "one hundred thirty-eight million, five hundred thirty-seven thousand, three hundred forty-eight".