12045812 has 6 divisors (see below), whose sum is σ = 21080178. Its totient is φ = 6022904.

The previous prime is 12045811. The next prime is 12045833. The reversal of 12045812 is 21854021.

It can be written as a sum of positive squares in only one way, i.e., 11316496 + 729316 = 3364^2 + 854^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12045811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1505723 + ... + 1505730.

It is an arithmetic number, because the mean of its divisors is an integer number (3513363).

Almost surely, 2^12045812 is an apocalyptic number.

It is an amenable number.

12045812 is a deficient number, since it is larger than the sum of its proper divisors (9034366).

12045812 is a wasteful number, since it uses less digits than its factorization.

12045812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3011457 (or 3011455 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 12045812 is about 3470.7077088110. The cubic root of 12045812 is about 229.2338210393.

Adding to 12045812 its reverse (21854021), we get a palindrome (33899833).

The spelling of 12045812 in words is "twelve million, forty-five thousand, eight hundred twelve".