12142825 has 12 divisors (see below), whose sum is σ = 15141888. Its totient is φ = 9659600.

The previous prime is 12142807. The next prime is 12142829. The reversal of 12142825 is 52824121.

12142825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-12142825 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12142825.

It is not an unprimeable number, because it can be changed into a prime (12142829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3504 + ... + 6046.

It is an arithmetic number, because the mean of its divisors is an integer number (1261824).

Almost surely, 2^12142825 is an apocalyptic number.

It is an amenable number.

12142825 is a deficient number, since it is larger than the sum of its proper divisors (2999063).

12142825 is a wasteful number, since it uses less digits than its factorization.

12142825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2744 (or 2739 counting only the distinct ones).

The product of its digits is 1280, while the sum is 25.

The square root of 12142825 is about 3484.6556501324. The cubic root of 12142825 is about 229.8475675548.

Adding to 12142825 its reverse (52824121), we get a palindrome (64966946).

The spelling of 12142825 in words is "twelve million, one hundred forty-two thousand, eight hundred twenty-five".