12042425 has 6 divisors (see below), whose sum is σ = 14932638. Its totient is φ = 9633920.

The previous prime is 12042421. The next prime is 12042439. The reversal of 12042425 is 52424021.

12042425 = T₉₆₉ + T₉₇₀ + ... + T₉₉₃.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 8464 + 12033961 = 92^2 + 3469^2 .

It is not a de Polignac number, because 12042425 - 2² = 12042421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12042397 and 12042406.

It is not an unprimeable number, because it can be changed into a prime (12042421) 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 5 ways as a sum of consecutive naturals, for example, 240824 + ... + 240873.

It is an arithmetic number, because the mean of its divisors is an integer number (2488773).

Almost surely, 2^12042425 is an apocalyptic number.

It is an amenable number.

12042425 is a deficient number, since it is larger than the sum of its proper divisors (2890213).

12042425 is an equidigital number, since it uses as much as digits as its factorization.

12042425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481707 (or 481702 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 12042425 is about 3470.2197336768. The cubic root of 12042425 is about 229.2123339661.

Adding to 12042425 its reverse (52424021), we get a palindrome (64466446).

The spelling of 12042425 in words is "twelve million, forty-two thousand, four hundred twenty-five".