12750578 has 8 divisors (see below), whose sum is σ = 20250972. Its totient is φ = 6000256.

The previous prime is 12750571. The next prime is 12750601. The reversal of 12750578 is 87505721.

12750578 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11042329 + 1708249 = 3323^2 + 1307^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12750571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187475 + ... + 187542.

Almost surely, 2^12750578 is an apocalyptic number.

12750578 is a deficient number, since it is larger than the sum of its proper divisors (7500394).

12750578 is a wasteful number, since it uses less digits than its factorization.

12750578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375036.

The product of its (nonzero) digits is 19600, while the sum is 35.

The square root of 12750578 is about 3570.7951495430. The cubic root of 12750578 is about 233.6199665683.

It can be divided in two parts, 127 and 50578, that added together give a palindrome (50705).

The spelling of 12750578 in words is "twelve million, seven hundred fifty thousand, five hundred seventy-eight".