12544145 has 8 divisors (see below), whose sum is σ = 15194304. Its totient is φ = 9941104.

The previous prime is 12544139. The next prime is 12544157. The reversal of 12544145 is 54144521.

12544145 = 288² + 289² + ... + 394².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12544145 - 2¹⁰ = 12543121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11189 + ... + 12258.

It is an arithmetic number, because the mean of its divisors is an integer number (1899288).

Almost surely, 2^12544145 is an apocalyptic number.

It is an amenable number.

12544145 is a deficient number, since it is larger than the sum of its proper divisors (2650159).

12544145 is a wasteful number, since it uses less digits than its factorization.

12544145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23559.

The product of its digits is 3200, while the sum is 26.

The square root of 12544145 is about 3541.7714494304. The cubic root of 12544145 is about 232.3523246133.

Adding to 12544145 its reverse (54144521), we get a palindrome (66688666).

The spelling of 12544145 in words is "twelve million, five hundred forty-four thousand, one hundred forty-five".