12545461 has 4 divisors (see below), whose sum is σ = 12566412. Its totient is φ = 12524512.

The previous prime is 12545459. The next prime is 12545521. The reversal of 12545461 is 16454521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6200100 + 6345361 = 2490^2 + 2519^2 .

It is a cyclic number.

It is not a de Polignac number, because 12545461 - 2¹ = 12545459 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12545411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9550 + ... + 10783.

It is an arithmetic number, because the mean of its divisors is an integer number (3141603).

Almost surely, 2^12545461 is an apocalyptic number.

It is an amenable number.

12545461 is a deficient number, since it is larger than the sum of its proper divisors (20951).

12545461 is an equidigital number, since it uses as much as digits as its factorization.

12545461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20950.

The product of its digits is 4800, while the sum is 28.

The square root of 12545461 is about 3541.9572272968. The cubic root of 12545461 is about 232.3604496513.

Adding to 12545461 its reverse (16454521), we get a palindrome (28999982).

The spelling of 12545461 in words is "twelve million, five hundred forty-five thousand, four hundred sixty-one".