8182248421 has 6 divisors (see below), whose sum is σ = 8376960390. Its totient is φ = 7991961768.

The previous prime is 8182248401. The next prime is 8182248433. The reversal of 8182248421 is 1248422818.

It can be written as a sum of positive squares in only one way, i.e., 5199996321 + 2982252100 = 72111^2 + 54610^2 .

It is not a de Polignac number, because 8182248421 - 2²¹ = 8180151269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8182248401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2210766 + ... + 2214463.

It is an arithmetic number, because the mean of its divisors is an integer number (1396160065).

Almost surely, 2^8182248421 is an apocalyptic number.

It is an amenable number.

8182248421 is a deficient number, since it is larger than the sum of its proper divisors (194711969).

8182248421 is an equidigital number, since it uses as much as digits as its factorization.

8182248421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4425315 (or 4425272 counting only the distinct ones).

The product of its digits is 65536, while the sum is 40.

The square root of 8182248421 is about 90455.7815786255. The cubic root of 8182248421 is about 2015.0734781416.

The spelling of 8182248421 in words is "eight billion, one hundred eighty-two million, two hundred forty-eight thousand, four hundred twenty-one".