138967048 has 64 divisors (see below), whose sum is σ = 296547840. Its totient is φ = 60984000.

The previous prime is 138967039. The next prime is 138967051. The reversal of 138967048 is 840769831.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 138966989 and 138967007.

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, 329878 + ... + 330298.

It is an arithmetic number, because the mean of its divisors is an integer number (4633560).

Almost surely, 2^138967048 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 138967048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148273920).

138967048 is an abundant number, since it is smaller than the sum of its proper divisors (157580792).

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

138967048 is a wasteful number, since it uses less digits than its factorization.

138967048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491 (or 465 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 138967048 is about 11788.4285636382. The cubic root of 138967048 is about 517.9692095213.

The spelling of 138967048 in words is "one hundred thirty-eight million, nine hundred sixty-seven thousand, forty-eight".