3045000221 has 4 divisors (see below), whose sum is σ = 3053725500. Its totient is φ = 3036274944.

The previous prime is 3045000209. The next prime is 3045000247. The reversal of 3045000221 is 1220005403.

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 2718475321 + 326524900 = 52139^2 + 18070^2 .

It is a cyclic number.

It is not a de Polignac number, because 3045000221 - 2⁶ = 3045000157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3045000221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3045000251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4362116 + ... + 4362813.

It is an arithmetic number, because the mean of its divisors is an integer number (763431375).

Almost surely, 2^3045000221 is an apocalyptic number.

It is an amenable number.

3045000221 is a deficient number, since it is larger than the sum of its proper divisors (8725279).

3045000221 is an equidigital number, since it uses as much as digits as its factorization.

3045000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8725278.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 3045000221 is about 55181.5206477676. The cubic root of 3045000221 is about 1449.4250944818.

Adding to 3045000221 its reverse (1220005403), we get a palindrome (4265005624).

The spelling of 3045000221 in words is "three billion, forty-five million, two hundred twenty-one", and thus it is an aban number.