138070976 has 56 divisors (see below), whose sum is σ = 283768800. Its totient is φ = 66604032.

The previous prime is 138070901. The next prime is 138070997. The reversal of 138070976 is 679070831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471086 + ... + 471378.

It is an arithmetic number, because the mean of its divisors is an integer number (5067300).

Almost surely, 2^138070976 is an apocalyptic number.

138070976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 138070976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141884400).

138070976 is an abundant number, since it is smaller than the sum of its proper divisors (145697824).

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

138070976 is a wasteful number, since it uses less digits than its factorization.

138070976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541 (or 531 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 138070976 is about 11750.3606753155. The cubic root of 138070976 is about 516.8535040312.

The spelling of 138070976 in words is "one hundred thirty-eight million, seventy thousand, nine hundred seventy-six".