12144260 has 12 divisors (see below), whose sum is σ = 25502988. Its totient is φ = 4857696.

The previous prime is 12144257. The next prime is 12144263. The reversal of 12144260 is 6244121.

It is an interprime number because it is at equal distance from previous prime (12144257) and next prime (12144263).

It can be written as a sum of positive squares in 2 ways, for example, as 7409284 + 4734976 = 2722^2 + 2176^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 607213 = 12144260 / (1 + 2 + 1 + 4 + 4 + 2 + 6 + 0).

It is not an unprimeable number, because it can be changed into a prime (12144263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303587 + ... + 303626.

It is an arithmetic number, because the mean of its divisors is an integer number (2125249).

Almost surely, 2^12144260 is an apocalyptic number.

12144260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12144260 is an abundant number, since it is smaller than the sum of its proper divisors (13358728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12144260 is a wasteful number, since it uses less digits than its factorization.

12144260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607222 (or 607220 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 12144260 is about 3484.8615467476. The cubic root of 12144260 is about 229.8566214135.

Adding to 12144260 its reverse (6244121), we get a palindrome (18388381).

The spelling of 12144260 in words is "twelve million, one hundred forty-four thousand, two hundred sixty".