12051644 has 12 divisors (see below), whose sum is σ = 23007768. Its totient is φ = 5478000.

The previous prime is 12051631. The next prime is 12051647. The reversal of 12051644 is 44615021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12051647) 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, 136907 + ... + 136994.

It is an arithmetic number, because the mean of its divisors is an integer number (1917314).

Almost surely, 2^12051644 is an apocalyptic number.

It is an amenable number.

12051644 is a deficient number, since it is larger than the sum of its proper divisors (10956124).

12051644 is a wasteful number, since it uses less digits than its factorization.

12051644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273916 (or 273914 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 12051644 is about 3471.5477816098. The cubic root of 12051644 is about 229.2708097163.

Adding to 12051644 its reverse (44615021), we get a palindrome (56666665).

The spelling of 12051644 in words is "twelve million, fifty-one thousand, six hundred forty-four".