12145660 has 24 divisors (see below), whose sum is σ = 25578000. Its totient is φ = 4844544.

The previous prime is 12145607. The next prime is 12145669. The reversal of 12145660 is 6654121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12145669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9372 + ... + 10588.

It is an arithmetic number, because the mean of its divisors is an integer number (1065750).

Almost surely, 2^12145660 is an apocalyptic number.

12145660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12145660 is an abundant number, since it is smaller than the sum of its proper divisors (13432340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12145660 is a wasteful number, since it uses less digits than its factorization.

12145660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1725 (or 1723 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 12145660 is about 3485.0624097712. The cubic root of 12145660 is about 229.8654537592.

Adding to 12145660 its reverse (6654121), we get a palindrome (18799781).

The spelling of 12145660 in words is "twelve million, one hundred forty-five thousand, six hundred sixty".