8051349221 has 8 divisors (see below), whose sum is σ = 8310935160. Its totient is φ = 7793972928.

The previous prime is 8051349179. The next prime is 8051349223. The reversal of 8051349221 is 1229431508.

It can be written as a sum of positive squares in 4 ways, for example, as 3830248321 + 4221100900 = 61889^2 + 64970^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 8051349221 - 2¹⁴ = 8051332837 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 (8051349223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 545006 + ... + 559583.

It is an arithmetic number, because the mean of its divisors is an integer number (1038866895).

Almost surely, 2^8051349221 is an apocalyptic number.

It is an amenable number.

8051349221 is a deficient number, since it is larger than the sum of its proper divisors (259585939).

8051349221 is a wasteful number, since it uses less digits than its factorization.

8051349221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104823.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 8051349221 is about 89729.3108242786. The cubic root of 8051349221 is about 2004.2699789023.

The spelling of 8051349221 in words is "eight billion, fifty-one million, three hundred forty-nine thousand, two hundred twenty-one".