138058776 has 64 divisors (see below), whose sum is σ = 384854400. Its totient is φ = 45856800.

The previous prime is 138058759. The next prime is 138058859. The reversal of 138058776 is 677850831.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70531 + ... + 72461.

It is an arithmetic number, because the mean of its divisors is an integer number (6013350).

Almost surely, 2^138058776 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 138058776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192427200).

138058776 is an abundant number, since it is smaller than the sum of its proper divisors (246795624).

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

138058776 is a wasteful number, since it uses less digits than its factorization.

138058776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2277 (or 2267 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 138058776 is about 11749.8415308463. The cubic root of 138058776 is about 516.8382804637.

The spelling of 138058776 in words is "one hundred thirty-eight million, fifty-eight thousand, seven hundred seventy-six".