138359748 has 72 divisors (see below), whose sum is σ = 349286560. Its totient is φ = 42626880.

The previous prime is 138359737. The next prime is 138359791. The reversal of 138359748 is 847953831.

138359748 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 138359697 and 138359706.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3374608 + ... + 3374648.

Almost surely, 2^138359748 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 138359748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174643280).

138359748 is an abundant number, since it is smaller than the sum of its proper divisors (210926812).

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

138359748 is an equidigital number, since it uses as much as digits as its factorization.

138359748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 65 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The square root of 138359748 is about 11762.6420501518. The cubic root of 138359748 is about 517.2135818508.

The spelling of 138359748 in words is "one hundred thirty-eight million, three hundred fifty-nine thousand, seven hundred forty-eight".