12242775 has 24 divisors (see below), whose sum is σ = 20355840. Its totient is φ = 6492640.

The previous prime is 12242773. The next prime is 12242779. The reversal of 12242775 is 57724221.

It is not a de Polignac number, because 12242775 - 2¹ = 12242773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12242773) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17584 + ... + 18266.

It is an arithmetic number, because the mean of its divisors is an integer number (848160).

Almost surely, 2^12242775 is an apocalyptic number.

12242775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12242775 is a deficient number, since it is larger than the sum of its proper divisors (8113065).

12242775 is a wasteful number, since it uses less digits than its factorization.

12242775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935 (or 930 counting only the distinct ones).

The product of its digits is 7840, while the sum is 30.

The square root of 12242775 is about 3498.9677049095. The cubic root of 12242775 is about 230.4764854150.

Adding to 12242775 its reverse (57724221), we get a palindrome (69966996).

The spelling of 12242775 in words is "twelve million, two hundred forty-two thousand, seven hundred seventy-five".