12545546 has 12 divisors (see below), whose sum is σ = 20377782. Its totient is φ = 5790096.

The previous prime is 12545527. The next prime is 12545563. The reversal of 12545546 is 64554521.

It can be written as a sum of positive squares in 3 ways, for example, as 6838225 + 5707321 = 2615^2 + 2389^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18221 + ... + 18896.

Almost surely, 2^12545546 is an apocalyptic number.

12545546 is a deficient number, since it is larger than the sum of its proper divisors (7832236).

12545546 is a wasteful number, since it uses less digits than its factorization.

12545546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37145 (or 37132 counting only the distinct ones).

The product of its digits is 24000, while the sum is 32.

The square root of 12545546 is about 3541.9692262921. The cubic root of 12545546 is about 232.3609744253.

The spelling of 12545546 in words is "twelve million, five hundred forty-five thousand, five hundred forty-six".