12031612 has 12 divisors (see below), whose sum is σ = 21092400. Its totient is φ = 6005216.

The previous prime is 12031603. The next prime is 12031619. The reversal of 12031612 is 21613021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264 + ... + 4912.

It is an arithmetic number, because the mean of its divisors is an integer number (1757700).

Almost surely, 2^12031612 is an apocalyptic number.

It is an amenable number.

12031612 is a deficient number, since it is larger than the sum of its proper divisors (9060788).

12031612 is a wasteful number, since it uses less digits than its factorization.

12031612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5300 (or 5298 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 12031612 is about 3468.6614132832. The cubic root of 12031612 is about 229.1437094946.

Adding to 12031612 its reverse (21613021), we get a palindrome (33644633).

The spelling of 12031612 in words is "twelve million, thirty-one thousand, six hundred twelve".