12545473 has 4 divisors (see below), whose sum is σ = 13283460. Its totient is φ = 11807488.

The previous prime is 12545459. The next prime is 12545521. The reversal of 12545473 is 37454521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37454521 = 13 ⋅2881117.

It can be written as a sum of positive squares in 2 ways, for example, as 8334769 + 4210704 = 2887^2 + 2052^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12545473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12545413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368968 + ... + 369001.

It is an arithmetic number, because the mean of its divisors is an integer number (3320865).

Almost surely, 2^12545473 is an apocalyptic number.

It is an amenable number.

12545473 is a deficient number, since it is larger than the sum of its proper divisors (737987).

12545473 is an equidigital number, since it uses as much as digits as its factorization.

12545473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737986.

The product of its digits is 16800, while the sum is 31.

The square root of 12545473 is about 3541.9589212751. The cubic root of 12545473 is about 232.3605237372.

Adding to 12545473 its reverse (37454521), we get a palindrome (49999994).

The spelling of 12545473 in words is "twelve million, five hundred forty-five thousand, four hundred seventy-three".