2281072813 has 2 divisors, whose sum is σ = 2281072814. Its totient is φ = 2281072812.

The previous prime is 2281072793. The next prime is 2281072819. The reversal of 2281072813 is 3182701822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2022570729 + 258502084 = 44973^2 + 16078^2 .

It is a cyclic number.

It is not a de Polignac number, because 2281072813 - 2⁹ = 2281072301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2281072819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1140536406 + 1140536407.

It is an arithmetic number, because the mean of its divisors is an integer number (1140536407).

Almost surely, 2^2281072813 is an apocalyptic number.

It is an amenable number.

2281072813 is a deficient number, since it is larger than the sum of its proper divisors (1).

2281072813 is an equidigital number, since it uses as much as digits as its factorization.

2281072813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 2281072813 is about 47760.5780220466. The cubic root of 2281072813 is about 1316.3752738774.

The spelling of 2281072813 in words is "two billion, two hundred eighty-one million, seventy-two thousand, eight hundred thirteen".