82580158 has 4 divisors (see below), whose sum is σ = 123870240. Its totient is φ = 41290078.

The previous prime is 82580129. The next prime is 82580161. The reversal of 82580158 is 85108528.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20645038 + ... + 20645041.

It is an arithmetic number, because the mean of its divisors is an integer number (30967560).

Almost surely, 2^82580158 is an apocalyptic number.

82580158 is a deficient number, since it is larger than the sum of its proper divisors (41290082).

82580158 is a wasteful number, since it uses less digits than its factorization.

82580158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41290081.

The product of its (nonzero) digits is 25600, while the sum is 37.

The square root of 82580158 is about 9087.3625436647. The cubic root of 82580158 is about 435.4703293562.

The spelling of 82580158 in words is "eighty-two million, five hundred eighty thousand, one hundred fifty-eight".