3045310721 has 2 divisors, whose sum is σ = 3045310722. Its totient is φ = 3045310720.

The previous prime is 3045310703. The next prime is 3045310777. The reversal of 3045310721 is 1270135403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2781085696 + 264225025 = 52736^2 + 16255^2 .

It is an emirp because it is prime and its reverse (1270135403) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3045310721 - 2¹⁰ = 3045309697 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3045330721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1522655360 + 1522655361.

It is an arithmetic number, because the mean of its divisors is an integer number (1522655361).

Almost surely, 2^3045310721 is an apocalyptic number.

It is an amenable number.

3045310721 is a deficient number, since it is larger than the sum of its proper divisors (1).

3045310721 is an equidigital number, since it uses as much as digits as its factorization.

3045310721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 3045310721 is about 55184.3340179077. The cubic root of 3045310721 is about 1449.4743589769.

The spelling of 3045310721 in words is "three billion, forty-five million, three hundred ten thousand, seven hundred twenty-one".