12750012 has 54 divisors (see below), whose sum is σ = 35437584. Its totient is φ = 3862320.

The previous prime is 12750011. The next prime is 12750071. The reversal of 12750012 is 21005721.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2893 + ... + 5819.

Almost surely, 2^12750012 is an apocalyptic number.

12750012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12750012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17718792).

12750012 is an abundant number, since it is smaller than the sum of its proper divisors (22687572).

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

12750012 is a wasteful number, since it uses less digits than its factorization.

12750012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2959 (or 2943 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 12750012 is about 3570.7158946071. The cubic root of 12750012 is about 233.6165097092.

Adding to 12750012 its reverse (21005721), we get a palindrome (33755733).

The spelling of 12750012 in words is "twelve million, seven hundred fifty thousand, twelve".