8147219053 has 4 divisors (see below), whose sum is σ = 8231211100. Its totient is φ = 8063227008.

The previous prime is 8147219039. The next prime is 8147219063. The reversal of 8147219053 is 3509127418.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3468385449 + 4678833604 = 58893^2 + 68402^2 .

It is a cyclic number.

It is not a de Polignac number, because 8147219053 - 2⁵ = 8147219021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8147218997 and 8147219015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8147219063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41995878 + ... + 41996071.

It is an arithmetic number, because the mean of its divisors is an integer number (2057802775).

Almost surely, 2^8147219053 is an apocalyptic number.

It is an amenable number.

8147219053 is a deficient number, since it is larger than the sum of its proper divisors (83992047).

8147219053 is an equidigital number, since it uses as much as digits as its factorization.

8147219053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83992046.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 8147219053 is about 90261.9468713145. The cubic root of 8147219053 is about 2012.1937594434.

The spelling of 8147219053 in words is "eight billion, one hundred forty-seven million, two hundred nineteen thousand, fifty-three".