138843088 has 20 divisors (see below), whose sum is σ = 280705248. Its totient is φ = 66403040.

The previous prime is 138843083. The next prime is 138843113. The reversal of 138843088 is 880348831.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138843083) 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, 188278 + ... + 189013.

Almost surely, 2^138843088 is an apocalyptic number.

It is an amenable number.

138843088 is an abundant number, since it is smaller than the sum of its proper divisors (141862160).

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

138843088 is a wasteful number, since it uses less digits than its factorization.

138843088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377322 (or 377316 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 43.

The square root of 138843088 is about 11783.1696924045. The cubic root of 138843088 is about 517.8151524628.

The spelling of 138843088 in words is "one hundred thirty-eight million, eight hundred forty-three thousand, eighty-eight".