12750018 has 16 divisors (see below), whose sum is σ = 25932960. Its totient is φ = 4177856.

The previous prime is 12750011. The next prime is 12750071. The reversal of 12750018 is 81005721.

It is a self number, because there is not a number n which added to its sum of digits gives 12750018.

It is not an unprimeable number, because it can be changed into a prime (12750011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17655 + ... + 18362.

It is an arithmetic number, because the mean of its divisors is an integer number (1620810).

Almost surely, 2^12750018 is an apocalyptic number.

12750018 is an abundant number, since it is smaller than the sum of its proper divisors (13182942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12750018 is a wasteful number, since it uses less digits than its factorization.

12750018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36081.

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 12750018 is about 3570.7167347747. The cubic root of 12750018 is about 233.6165463549.

Adding to 12750018 its reverse (81005721), we get a palindrome (93755739).

The spelling of 12750018 in words is "twelve million, seven hundred fifty thousand, eighteen".