12545873 has 4 divisors (see below), whose sum is σ = 12555060. Its totient is φ = 12536688.

The previous prime is 12545867. The next prime is 12545887. The reversal of 12545873 is 37854521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 9628609 + 2917264 = 3103^2 + 1708^2 .

It is a cyclic number.

It is not a de Polignac number, because 12545873 - 2¹⁶ = 12480337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12545803) 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, 2090 + ... + 5427.

It is an arithmetic number, because the mean of its divisors is an integer number (3138765).

Almost surely, 2^12545873 is an apocalyptic number.

It is an amenable number.

12545873 is a deficient number, since it is larger than the sum of its proper divisors (9187).

12545873 is an equidigital number, since it uses as much as digits as its factorization.

12545873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9186.

The product of its digits is 33600, while the sum is 35.

The square root of 12545873 is about 3542.0153867537. The cubic root of 12545873 is about 232.3629932395.

The spelling of 12545873 in words is "twelve million, five hundred forty-five thousand, eight hundred seventy-three".