12044155 has 8 divisors (see below), whose sum is σ = 14490000. Its totient is φ = 9610656.

The previous prime is 12044147. The next prime is 12044159. The reversal of 12044155 is 55144021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12044155 - 2³ = 12044147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12044159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 780 + ... + 4969.

It is an arithmetic number, because the mean of its divisors is an integer number (1811250).

Almost surely, 2^12044155 is an apocalyptic number.

12044155 is a deficient number, since it is larger than the sum of its proper divisors (2445845).

12044155 is an equidigital number, since it uses as much as digits as its factorization.

12044155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6173.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 12044155 is about 3470.4689884798. The cubic root of 12044155 is about 229.2233095614.

Adding to 12044155 its reverse (55144021), we get a palindrome (67188176).

The spelling of 12044155 in words is "twelve million, forty-four thousand, one hundred fifty-five".