82142817 has 8 divisors (see below), whose sum is σ = 110754720. Its totient is φ = 54146400.

The previous prime is 82142813. The next prime is 82142831. The reversal of 82142817 is 71824128.

It is a happy number.

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

It is not a de Polignac number, because 82142817 - 2² = 82142813 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82142813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153559 + ... + 154092.

It is an arithmetic number, because the mean of its divisors is an integer number (13844340).

Almost surely, 2^82142817 is an apocalyptic number.

It is an amenable number.

82142817 is a deficient number, since it is larger than the sum of its proper divisors (28611903).

82142817 is a wasteful number, since it uses less digits than its factorization.

82142817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307743.

The product of its digits is 7168, while the sum is 33.

The square root of 82142817 is about 9063.2674571591. The cubic root of 82142817 is about 434.7002241642.

The spelling of 82142817 in words is "eighty-two million, one hundred forty-two thousand, eight hundred seventeen".