12025138 has 16 divisors (see below), whose sum is σ = 19393920. Its totient is φ = 5574096.

The previous prime is 12025133. The next prime is 12025151. The reversal of 12025138 is 83152021.

It is not an unprimeable number, because it can be changed into a prime (12025133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1581 + ... + 5152.

It is an arithmetic number, because the mean of its divisors is an integer number (1212120).

Almost surely, 2^12025138 is an apocalyptic number.

12025138 is a deficient number, since it is larger than the sum of its proper divisors (7368782).

12025138 is a wasteful number, since it uses less digits than its factorization.

12025138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6801.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 12025138 is about 3467.7280746910. The cubic root of 12025138 is about 229.1026027132.

Adding to 12025138 its reverse (83152021), we get a palindrome (95177159).

The spelling of 12025138 in words is "twelve million, twenty-five thousand, one hundred thirty-eight".