12445603529 has 2 divisors, whose sum is σ = 12445603530. Its totient is φ = 12445603528.

The previous prime is 12445603501. The next prime is 12445603553. The reversal of 12445603529 is 92530654421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11267397904 + 1178205625 = 106148^2 + 34325^2 .

It is a cyclic number.

It is not a de Polignac number, because 12445603529 - 2¹² = 12445599433 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12445603579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6222801764 + 6222801765.

It is an arithmetic number, because the mean of its divisors is an integer number (6222801765).

Almost surely, 2^12445603529 is an apocalyptic number.

It is an amenable number.

12445603529 is a deficient number, since it is larger than the sum of its proper divisors (1).

12445603529 is an equidigital number, since it uses as much as digits as its factorization.

12445603529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 12445603529 in words is "twelve billion, four hundred forty-five million, six hundred three thousand, five hundred twenty-nine".