12451645229 has 2 divisors, whose sum is σ = 12451645230. Its totient is φ = 12451645228.

The previous prime is 12451645181. The next prime is 12451645243. The reversal of 12451645229 is 92254615421.

12451645229 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 can be written as a sum of positive squares in only one way, i.e., 8985144100 + 3466501129 = 94790^2 + 58877^2 .

It is a cyclic number.

It is not a de Polignac number, because 12451645229 - 2⁸ = 12451644973 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12451645289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6225822614 + 6225822615.

It is an arithmetic number, because the mean of its divisors is an integer number (6225822615).

Almost surely, 2^12451645229 is an apocalyptic number.

It is an amenable number.

12451645229 is a deficient number, since it is larger than the sum of its proper divisors (1).

12451645229 is an equidigital number, since it uses as much as digits as its factorization.

12451645229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172800, while the sum is 41.

The spelling of 12451645229 in words is "twelve billion, four hundred fifty-one million, six hundred forty-five thousand, two hundred twenty-nine".