138175248 has 80 divisors (see below), whose sum is σ = 371976192. Its totient is φ = 44160000.

The previous prime is 138175223. The next prime is 138175319. The reversal of 138175248 is 842571831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119473 + ... + 120623.

Almost surely, 2^138175248 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 138175248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185988096).

138175248 is an abundant number, since it is smaller than the sum of its proper divisors (233800944).

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

138175248 is a wasteful number, since it uses less digits than its factorization.

138175248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264 (or 1258 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 138175248 is about 11754.7968081120. The cubic root of 138175248 is about 516.9835815440.

The spelling of 138175248 in words is "one hundred thirty-eight million, one hundred seventy-five thousand, two hundred forty-eight".