12015425 has 12 divisors (see below), whose sum is σ = 15413820. Its totient is φ = 9280320.

The previous prime is 12015373. The next prime is 12015427. The reversal of 12015425 is 52451021.

It can be written as a sum of positive squares in 6 ways, for example, as 16129 + 11999296 = 127^2 + 3464^2 .

It is not a de Polignac number, because 12015425 - 2⁸ = 12015169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12015397 and 12015406.

It is not an unprimeable number, because it can be changed into a prime (12015427) 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 11 ways as a sum of consecutive naturals, for example, 7562 + ... + 9011.

It is an arithmetic number, because the mean of its divisors is an integer number (1284485).

Almost surely, 2^12015425 is an apocalyptic number.

It is an amenable number.

12015425 is a deficient number, since it is larger than the sum of its proper divisors (3398395).

12015425 is a wasteful number, since it uses less digits than its factorization.

12015425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16612 (or 16607 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 12015425 is about 3466.3273071076. The cubic root of 12015425 is about 229.0409021605.

Adding to 12015425 its reverse (52451021), we get a palindrome (64466446).

The spelling of 12015425 in words is "twelve million, fifteen thousand, four hundred twenty-five".