12630251 has 2 divisors, whose sum is σ = 12630252. Its totient is φ = 12630250.

The previous prime is 12630229. The next prime is 12630253. The reversal of 12630251 is 15203621.

12630251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12630251 is a prime.

It is a Sophie Germain prime.

Together with 12630253, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12630253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6315125 + 6315126.

It is an arithmetic number, because the mean of its divisors is an integer number (6315126).

Almost surely, 2^12630251 is an apocalyptic number.

12630251 is a deficient number, since it is larger than the sum of its proper divisors (1).

12630251 is an equidigital number, since it uses as much as digits as its factorization.

12630251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 12630251 is about 3553.9064422126. The cubic root of 12630251 is about 232.8827533670.

Adding to 12630251 its reverse (15203621), we get a palindrome (27833872).

The spelling of 12630251 in words is "twelve million, six hundred thirty thousand, two hundred fifty-one".