138554088 has 64 divisors (see below), whose sum is σ = 357739200. Its totient is φ = 44689920.

The previous prime is 138554081. The next prime is 138554089. The reversal of 138554088 is 880455831.

138554088 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (138554081) 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, 136270 + ... + 137282.

It is an arithmetic number, because the mean of its divisors is an integer number (5589675).

Almost surely, 2^138554088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 138554088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178869600).

138554088 is an abundant number, since it is smaller than the sum of its proper divisors (219185112).

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

138554088 is a wasteful number, since it uses less digits than its factorization.

138554088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202 (or 1198 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 42.

The square root of 138554088 is about 11770.9000505484. The cubic root of 138554088 is about 517.4556278322.

The spelling of 138554088 in words is "one hundred thirty-eight million, five hundred fifty-four thousand, eighty-eight".