12247425 has 36 divisors (see below), whose sum is σ = 22705020. Its totient is φ = 6303360.

The previous prime is 12247423. The next prime is 12247441. The reversal of 12247425 is 52474221.

It can be written as a sum of positive squares in 6 ways, for example, as 53361 + 12194064 = 231^2 + 3492^2 .

It is not a de Polignac number, because 12247425 - 2¹ = 12247423 is a prime.

It is a zygodrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (12247423) 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 35 ways as a sum of consecutive naturals, for example, 5587 + ... + 7463.

It is an arithmetic number, because the mean of its divisors is an integer number (630695).

Almost surely, 2^12247425 is an apocalyptic number.

12247425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12247425 is a deficient number, since it is larger than the sum of its proper divisors (10457595).

12247425 is a wasteful number, since it uses less digits than its factorization.

12247425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1922 (or 1914 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 12247425 is about 3499.6321235238. The cubic root of 12247425 is about 230.5056612623.

It can be divided in two parts, 1224 and 7425, that added together give a square (8649 = 93²).

The spelling of 12247425 in words is "twelve million, two hundred forty-seven thousand, four hundred twenty-five".