12145675 has 6 divisors (see below), whose sum is σ = 15060668. Its totient is φ = 9716520.

The previous prime is 12145673. The next prime is 12145699. The reversal of 12145675 is 57654121.

It is not a de Polignac number, because 12145675 - 2¹ = 12145673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12145673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 242889 + ... + 242938.

Almost surely, 2^12145675 is an apocalyptic number.

12145675 is a deficient number, since it is larger than the sum of its proper divisors (2914993).

12145675 is an equidigital number, since it uses as much as digits as its factorization.

12145675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485837 (or 485832 counting only the distinct ones).

The product of its digits is 8400, while the sum is 31.

The square root of 12145675 is about 3485.0645618123. The cubic root of 12145675 is about 229.8655483878.

Adding to 12145675 its reverse (57654121), we get a palindrome (69799796).

It can be divided in two parts, 1214 and 5675, that added together give a square (6889 = 83²).

The spelling of 12145675 in words is "twelve million, one hundred forty-five thousand, six hundred seventy-five".