7045073281 has 2 divisors, whose sum is σ = 7045073282. Its totient is φ = 7045073280.

The previous prime is 7045073263. The next prime is 7045073293. The reversal of 7045073281 is 1823705407.

7045073281 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7025792400 + 19280881 = 83820^2 + 4391^2 .

It is a cyclic number.

It is not a de Polignac number, because 7045073281 - 2¹⁷ = 7044942209 is a prime.

It is a super-2 number, since 2×7045073281² = 99266115069320209922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7045073281.

It is not a weakly prime, because it can be changed into another prime (7045073261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3522536640 + 3522536641.

It is an arithmetic number, because the mean of its divisors is an integer number (3522536641).

Almost surely, 2^7045073281 is an apocalyptic number.

It is an amenable number.

7045073281 is a deficient number, since it is larger than the sum of its proper divisors (1).

7045073281 is an equidigital number, since it uses as much as digits as its factorization.

7045073281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 7045073281 is about 83934.9348066703. The cubic root of 7045073281 is about 1917.0282152215.

Adding to 7045073281 its reverse (1823705407), we get a palindrome (8868778688).

The spelling of 7045073281 in words is "seven billion, forty-five million, seventy-three thousand, two hundred eighty-one".