12751250 has 30 divisors (see below), whose sum is σ = 24139929. Its totient is φ = 5050000.

The previous prime is 12751237. The next prime is 12751253. The reversal of 12751250 is 5215721.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1129969 + 11621281 = 1063^2 + 3409^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=2525.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12751253) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 126200 + ... + 126300.

Almost surely, 2^12751250 is an apocalyptic number.

12751250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12751250 is a deficient number, since it is larger than the sum of its proper divisors (11388679).

12751250 is an frugal number, since it uses more digits than its factorization.

12751250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 12751250 is about 3570.8892449921. The cubic root of 12751250 is about 233.6240706923.

Adding to 12751250 its reverse (5215721), we get a palindrome (17966971).

The spelling of 12751250 in words is "twelve million, seven hundred fifty-one thousand, two hundred fifty".