12145748 has 12 divisors (see below), whose sum is σ = 22179360. Its totient is φ = 5808792.

The previous prime is 12145739. The next prime is 12145753. The reversal of 12145748 is 84754121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 65918 + ... + 66101.

It is an arithmetic number, because the mean of its divisors is an integer number (1848280).

Almost surely, 2^12145748 is an apocalyptic number.

It is an amenable number.

12145748 is a deficient number, since it is larger than the sum of its proper divisors (10033612).

12145748 is a wasteful number, since it uses less digits than its factorization.

12145748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132046 (or 132044 counting only the distinct ones).

The product of its digits is 8960, while the sum is 32.

The square root of 12145748 is about 3485.0750350602. The cubic root of 12145748 is about 229.8660089125.

Adding to 12145748 its reverse (84754121), we get a palindrome (96899869).

The spelling of 12145748 in words is "twelve million, one hundred forty-five thousand, seven hundred forty-eight".