2630281 has 2 divisors, whose sum is σ = 2630282. Its totient is φ = 2630280.

The previous prime is 2630239. The next prime is 2630317. The reversal of 2630281 is 1820362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1440000 + 1190281 = 1200^2 + 1091^2 .

It is a cyclic number.

It is not a de Polignac number, because 2630281 - 2⁷ = 2630153 is a prime.

It is a super-2 number, since 2×2630281² = 13836756277922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2630681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1315140 + 1315141.

It is an arithmetic number, because the mean of its divisors is an integer number (1315141).

2^2630281 is an apocalyptic number.

It is an amenable number.

2630281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2630281 is an equidigital number, since it uses as much as digits as its factorization.

2630281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2630281 is about 1621.8141077201. The cubic root of 2630281 is about 138.0386540183.

The spelling of 2630281 in words is "two million, six hundred thirty thousand, two hundred eighty-one".