12750075 has 48 divisors (see below), whose sum is σ = 25241440. Its totient is φ = 6272640.

The previous prime is 12750071. The next prime is 12750091. The reversal of 12750075 is 57005721.

It is not a de Polignac number, because 12750075 - 2² = 12750071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12750071) 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 47 ways as a sum of consecutive naturals, for example, 8049 + ... + 9501.

Almost surely, 2^12750075 is an apocalyptic number.

12750075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12750075 is a deficient number, since it is larger than the sum of its proper divisors (12491365).

12750075 is a wasteful number, since it uses less digits than its factorization.

12750075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485 (or 1474 counting only the distinct ones).

The product of its (nonzero) digits is 2450, while the sum is 27.

The square root of 12750075 is about 3570.7247163566. The cubic root of 12750075 is about 233.6168944883.

Adding to 12750075 its reverse (57005721), we get a palindrome (69755796).

The spelling of 12750075 in words is "twelve million, seven hundred fifty thousand, seventy-five".