12630481 has 2 divisors, whose sum is σ = 12630482. Its totient is φ = 12630480.

The previous prime is 12630463. The next prime is 12630487. The reversal of 12630481 is 18403621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11662225 + 968256 = 3415^2 + 984^2 .

It is a cyclic number.

It is not a de Polignac number, because 12630481 - 2¹⁵ = 12597713 is a prime.

It is a super-2 number, since 2×12630481² = 319058100582722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12630487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6315240 + 6315241.

It is an arithmetic number, because the mean of its divisors is an integer number (6315241).

Almost surely, 2^12630481 is an apocalyptic number.

It is an amenable number.

12630481 is a deficient number, since it is larger than the sum of its proper divisors (1).

12630481 is an equidigital number, since it uses as much as digits as its factorization.

12630481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 12630481 is about 3553.9388008237. The cubic root of 12630481 is about 232.8841669759.

It can be divided in two parts, 126 and 30481, that multiplied together give a triangular number (3840606 = T₂₇₇₁).

The spelling of 12630481 in words is "twelve million, six hundred thirty thousand, four hundred eighty-one".