12660245 has 32 divisors (see below), whose sum is σ = 17332224. Its totient is φ = 8812800.

The previous prime is 12660229. The next prime is 12660283. The reversal of 12660245 is 54206621.

It is not a de Polignac number, because 12660245 - 2⁴ = 12660229 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122864 + ... + 122966.

It is an arithmetic number, because the mean of its divisors is an integer number (541632).

Almost surely, 2^12660245 is an apocalyptic number.

It is an amenable number.

12660245 is a deficient number, since it is larger than the sum of its proper divisors (4671979).

12660245 is a wasteful number, since it uses less digits than its factorization.

12660245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 12660245 is about 3558.1238033548. The cubic root of 12660245 is about 233.0669556512.

Adding to 12660245 its reverse (54206621), we get a palindrome (66866866).

The spelling of 12660245 in words is "twelve million, six hundred sixty thousand, two hundred forty-five".