12144245 has 8 divisors (see below), whose sum is σ = 14671800. Its totient is φ = 9649600.

The previous prime is 12144233. The next prime is 12144247. The reversal of 12144245 is 54244121.

It can be written as a sum of positive squares in 4 ways, for example, as 1002001 + 11142244 = 1001^2 + 3338^2 .

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

It is not a de Polignac number, because 12144245 - 2⁴ = 12144229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12144245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12144247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7406 + ... + 8895.

It is an arithmetic number, because the mean of its divisors is an integer number (1833975).

Almost surely, 2^12144245 is an apocalyptic number.

It is an amenable number.

12144245 is a deficient number, since it is larger than the sum of its proper divisors (2527555).

12144245 is a wasteful number, since it uses less digits than its factorization.

12144245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16455.

The product of its digits is 1280, while the sum is 23.

The square root of 12144245 is about 3484.8593945811. The cubic root of 12144245 is about 229.8565267776.

Adding to 12144245 its reverse (54244121), we get a palindrome (66388366).

The spelling of 12144245 in words is "twelve million, one hundred forty-four thousand, two hundred forty-five".