83138080 has 48 divisors (see below), whose sum is σ = 199765440. Its totient is φ = 32687872.

The previous prime is 83138071. The next prime is 83138087. The reversal of 83138080 is 8083138.

It is not an unprimeable number, because it can be changed into a prime (83138087) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5037 + ... + 13843.

It is an arithmetic number, because the mean of its divisors is an integer number (4161780).

Almost surely, 2^83138080 is an apocalyptic number.

83138080 is a gapful number since it is divisible by the number (80) 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 83138080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99882720).

83138080 is an abundant number, since it is smaller than the sum of its proper divisors (116627360).

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

83138080 is a wasteful number, since it uses less digits than its factorization.

83138080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8881 (or 8873 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 83138080 is about 9118.0085545036. The cubic root of 83138080 is about 436.4488265913.

The spelling of 83138080 in words is "eighty-three million, one hundred thirty-eight thousand, eighty".