12081332 has 6 divisors (see below), whose sum is σ = 21142338. Its totient is φ = 6040664.

The previous prime is 12081331. The next prime is 12081343. The reversal of 12081332 is 23318021.

It can be written as a sum of positive squares in only one way, i.e., 7862416 + 4218916 = 2804^2 + 2054^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12081331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1510163 + ... + 1510170.

It is an arithmetic number, because the mean of its divisors is an integer number (3523723).

Almost surely, 2^12081332 is an apocalyptic number.

It is an amenable number.

12081332 is a deficient number, since it is larger than the sum of its proper divisors (9061006).

12081332 is a wasteful number, since it uses less digits than its factorization.

12081332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3020337 (or 3020335 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 12081332 is about 3475.8210540820. The cubic root of 12081332 is about 229.4589171181.

Adding to 12081332 its reverse (23318021), we get a palindrome (35399353).

The spelling of 12081332 in words is "twelve million, eighty-one thousand, three hundred thirty-two".