12240075 has 24 divisors (see below), whose sum is σ = 20342448. Its totient is φ = 6494080.

The previous prime is 12240073. The next prime is 12240083. The reversal of 12240075 is 57004221.

It is not a de Polignac number, because 12240075 - 2¹ = 12240073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12240073) 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 23 ways as a sum of consecutive naturals, for example, 21697 + ... + 22253.

It is an arithmetic number, because the mean of its divisors is an integer number (847602).

Almost surely, 2^12240075 is an apocalyptic number.

12240075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12240075 is a deficient number, since it is larger than the sum of its proper divisors (8102373).

12240075 is a wasteful number, since it uses less digits than its factorization.

12240075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863 (or 858 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 12240075 is about 3498.5818555523. The cubic root of 12240075 is about 230.4595412101.

Adding to 12240075 its reverse (57004221), we get a palindrome (69244296).

The spelling of 12240075 in words is "twelve million, two hundred forty thousand, seventy-five".