12036538 has 16 divisors (see below), whose sum is σ = 19224000. Its totient is φ = 5635872.

The previous prime is 12036523. The next prime is 12036539. The reversal of 12036538 is 83563021.

It is not an unprimeable number, because it can be changed into a prime (12036539) 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, 1603 + ... + 5161.

It is an arithmetic number, because the mean of its divisors is an integer number (1201500).

Almost surely, 2^12036538 is an apocalyptic number.

12036538 is a deficient number, since it is larger than the sum of its proper divisors (7187462).

12036538 is a wasteful number, since it uses less digits than its factorization.

12036538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3669.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 12036538 is about 3469.3714128066. The cubic root of 12036538 is about 229.1749773442.

Adding to 12036538 its reverse (83563021), we get a palindrome (95599559).

The spelling of 12036538 in words is "twelve million, thirty-six thousand, five hundred thirty-eight".