82580138 has 8 divisors (see below), whose sum is σ = 124208832. Its totient is φ = 41177196.

The previous prime is 82580129. The next prime is 82580161. The reversal of 82580138 is 83108528.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 82580098 and 82580107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55520 + ... + 56987.

It is an arithmetic number, because the mean of its divisors is an integer number (15526104).

Almost surely, 2^82580138 is an apocalyptic number.

82580138 is a deficient number, since it is larger than the sum of its proper divisors (41628694).

82580138 is a wasteful number, since it uses less digits than its factorization.

82580138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112876.

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 82580138 is about 9087.3614432353. The cubic root of 82580138 is about 435.4702942009.

The spelling of 82580138 in words is "eighty-two million, five hundred eighty thousand, one hundred thirty-eight".