12544513 has 2 divisors, whose sum is σ = 12544514. Its totient is φ = 12544512.

The previous prime is 12544507. The next prime is 12544523. The reversal of 12544513 is 31544521.

It is a happy number.

12544513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11675889 + 868624 = 3417^2 + 932^2 .

It is a cyclic number.

It is not a de Polignac number, because 12544513 - 2⁵ = 12544481 is a prime.

It is not a weakly prime, because it can be changed into another prime (12544523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6272256 + 6272257.

It is an arithmetic number, because the mean of its divisors is an integer number (6272257).

Almost surely, 2^12544513 is an apocalyptic number.

It is an amenable number.

12544513 is a deficient number, since it is larger than the sum of its proper divisors (1).

12544513 is an equidigital number, since it uses as much as digits as its factorization.

12544513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2400, while the sum is 25.

The square root of 12544513 is about 3541.8234004535. The cubic root of 12544513 is about 232.3545967176.

The spelling of 12544513 in words is "twelve million, five hundred forty-four thousand, five hundred thirteen".