12545017 has 4 divisors (see below), whose sum is σ = 12562020. Its totient is φ = 12528016.

The previous prime is 12544999. The next prime is 12545041. The reversal of 12545017 is 71054521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71054521 = 23 ⋅3089327.

It can be written as a sum of positive squares in 2 ways, for example, as 6885376 + 5659641 = 2624^2 + 2379^2 .

It is a cyclic number.

It is not a de Polignac number, because 12545017 - 2²³ = 4156409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12544982 and 12545000.

It is not an unprimeable number, because it can be changed into a prime (12545417) 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, 7342 + ... + 8887.

It is an arithmetic number, because the mean of its divisors is an integer number (3140505).

Almost surely, 2^12545017 is an apocalyptic number.

It is an amenable number.

12545017 is a deficient number, since it is larger than the sum of its proper divisors (17003).

12545017 is an equidigital number, since it uses as much as digits as its factorization.

12545017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17002.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 12545017 is about 3541.8945495314. The cubic root of 12545017 is about 232.3577084406.

Adding to 12545017 its reverse (71054521), we get a palindrome (83599538).

The spelling of 12545017 in words is "twelve million, five hundred forty-five thousand, seventeen".