12243501 has 16 divisors (see below), whose sum is σ = 18193600. Its totient is φ = 8137584.

The previous prime is 12243457. The next prime is 12243541. The reversal of 12243501 is 10534221.

12243501 is a `hidden beast` number, since 122 + 43 + 501 = 666.

It is not a de Polignac number, because 12243501 - 2⁷ = 12243373 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12243541) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 14355 + ... + 15183.

It is an arithmetic number, because the mean of its divisors is an integer number (1137100).

Almost surely, 2^12243501 is an apocalyptic number.

It is an amenable number.

12243501 is a deficient number, since it is larger than the sum of its proper divisors (5950099).

12243501 is an equidigital number, since it uses as much as digits as its factorization.

12243501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385 (or 1379 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 12243501 is about 3499.0714482560. The cubic root of 12243501 is about 230.4810410984.

Adding to 12243501 its reverse (10534221), we get a palindrome (22777722).

The spelling of 12243501 in words is "twelve million, two hundred forty-three thousand, five hundred one".