82215163 has 8 divisors (see below), whose sum is σ = 83317248. Its totient is φ = 81118464.

The previous prime is 82215151. The next prime is 82215187. The reversal of 82215163 is 36151228.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82215163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82215563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36045 + ... + 38257.

It is an arithmetic number, because the mean of its divisors is an integer number (10414656).

Almost surely, 2^82215163 is an apocalyptic number.

82215163 is a deficient number, since it is larger than the sum of its proper divisors (1102085).

82215163 is a wasteful number, since it uses less digits than its factorization.

82215163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2693.

The product of its digits is 2880, while the sum is 28.

The square root of 82215163 is about 9067.2577442135. The cubic root of 82215163 is about 434.8278051887.

The spelling of 82215163 in words is "eighty-two million, two hundred fifteen thousand, one hundred sixty-three".