12461425 has 24 divisors (see below), whose sum is σ = 16572600. Its totient is φ = 9262080.

The previous prime is 12461419. The next prime is 12461429. The reversal of 12461425 is 52416421.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 3389281 + 9072144 = 1841^2 + 3012^2 .

It is not a de Polignac number, because 12461425 - 2¹⁵ = 12428657 is a prime.

It is a super-2 number, since 2×12461425² = 310574226061250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 12461425.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12461429) 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 23 ways as a sum of consecutive naturals, for example, 46191 + ... + 46459.

It is an arithmetic number, because the mean of its divisors is an integer number (690525).

Almost surely, 2^12461425 is an apocalyptic number.

It is an amenable number.

12461425 is a deficient number, since it is larger than the sum of its proper divisors (4111175).

12461425 is a wasteful number, since it uses less digits than its factorization.

12461425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405 (or 400 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 12461425 is about 3530.0743618230. The cubic root of 12461425 is about 231.8404632970.

Adding to 12461425 its reverse (52416421), we get a palindrome (64877846).

It can be divided in two parts, 12461 and 425, that multiplied together give a palindrome (5295925).

The spelling of 12461425 in words is "twelve million, four hundred sixty-one thousand, four hundred twenty-five".