7982145 has 20 divisors (see below), whose sum is σ = 14309460. Its totient is φ = 4256928.

The previous prime is 7982141. The next prime is 7982153. The reversal of 7982145 is 5412897.

It can be written as a sum of positive squares in 2 ways, for example, as 3470769 + 4511376 = 1863^2 + 2124^2 .

It is not a de Polignac number, because 7982145 - 2² = 7982141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7982141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9450 + ... + 10259.

It is an arithmetic number, because the mean of its divisors is an integer number (715473).

Almost surely, 2^7982145 is an apocalyptic number.

It is an amenable number.

7982145 is a deficient number, since it is larger than the sum of its proper divisors (6327315).

7982145 is a wasteful number, since it uses less digits than its factorization.

7982145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19726 (or 19717 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 7982145 is about 2825.2690137401. The cubic root of 7982145 is about 199.8510975011.

The spelling of 7982145 in words is "seven million, nine hundred eighty-two thousand, one hundred forty-five".