8161082 has 4 divisors (see below), whose sum is σ = 12241626. Its totient is φ = 4080540.

The previous prime is 8161081. The next prime is 8161121. The reversal of 8161082 is 2801618.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2801618 = 2 ⋅1400809.

It can be written as a sum of positive squares in only one way, i.e., 5067001 + 3094081 = 2251^2 + 1759^2 .

It is not an unprimeable number, because it can be changed into a prime (8161081) 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 as a sum of consecutive naturals, namely, 2040269 + ... + 2040272.

Almost surely, 2^8161082 is an apocalyptic number.

8161082 is a deficient number, since it is larger than the sum of its proper divisors (4080544).

8161082 is a wasteful number, since it uses less digits than its factorization.

8161082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4080543.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 8161082 is about 2856.7607530208. The cubic root of 8161082 is about 201.3334399319. Note that the first 3 decimals are identical.

The spelling of 8161082 in words is "eight million, one hundred sixty-one thousand, eighty-two".