12618755 has 12 divisors (see below), whose sum is σ = 15983712. Its totient is φ = 9562320.

The previous prime is 12618751. The next prime is 12618757. The reversal of 12618755 is 55781621.

It is not a de Polignac number, because 12618755 - 2² = 12618751 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12618751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1691 + ... + 5300.

It is an arithmetic number, because the mean of its divisors is an integer number (1331976).

Almost surely, 2^12618755 is an apocalyptic number.

12618755 is a deficient number, since it is larger than the sum of its proper divisors (3364957).

12618755 is an equidigital number, since it uses as much as digits as its factorization.

12618755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7034 (or 7015 counting only the distinct ones).

The product of its digits is 16800, while the sum is 35.

The square root of 12618755 is about 3552.2886988532. The cubic root of 12618755 is about 232.8120756265.

It can be divided in two parts, 126 and 18755, that added together give a palindrome (18881).

The spelling of 12618755 in words is "twelve million, six hundred eighteen thousand, seven hundred fifty-five".