12545413 has 2 divisors, whose sum is σ = 12545414. Its totient is φ = 12545412.

The previous prime is 12545411. The next prime is 12545417. The reversal of 12545413 is 31454521.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10349089 + 2196324 = 3217^2 + 1482^2 .

It is a cyclic number.

It is not a de Polignac number, because 12545413 - 2¹ = 12545411 is a prime.

Together with 12545411, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12545411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6272706 + 6272707.

It is an arithmetic number, because the mean of its divisors is an integer number (6272707).

Almost surely, 2^12545413 is an apocalyptic number.

It is an amenable number.

12545413 is a deficient number, since it is larger than the sum of its proper divisors (1).

12545413 is an equidigital number, since it uses as much as digits as its factorization.

12545413 is an odious number, because the sum of its binary digits is odd.

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

The square root of 12545413 is about 3541.9504513756. The cubic root of 12545413 is about 232.3601533073.

Adding to 12545413 its reverse (31454521), we get a palindrome (43999934).

The spelling of 12545413 in words is "twelve million, five hundred forty-five thousand, four hundred thirteen".