3081045281 has 2 divisors, whose sum is σ = 3081045282. Its totient is φ = 3081045280.

The previous prime is 3081045277. The next prime is 3081045287. The reversal of 3081045281 is 1825401803.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2028691681 + 1052353600 = 45041^2 + 32440^2 .

It is a cyclic number.

It is not a de Polignac number, because 3081045281 - 2² = 3081045277 is a prime.

It is a super-2 number, since 2×3081045281² = 18985680047144737922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3081045287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1540522640 + 1540522641.

It is an arithmetic number, because the mean of its divisors is an integer number (1540522641).

Almost surely, 2^3081045281 is an apocalyptic number.

It is an amenable number.

3081045281 is a deficient number, since it is larger than the sum of its proper divisors (1).

3081045281 is an equidigital number, since it uses as much as digits as its factorization.

3081045281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 3081045281 is about 55507.1642312954. The cubic root of 3081045281 is about 1455.1218441280.

The spelling of 3081045281 in words is "three billion, eighty-one million, forty-five thousand, two hundred eighty-one".