12144270 has 32 divisors (see below), whose sum is σ = 29261088. Its totient is φ = 3225728.

The previous prime is 12144263. The next prime is 12144289. The reversal of 12144270 is 7244121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8872 + ... + 10148.

It is an arithmetic number, because the mean of its divisors is an integer number (914409).

Almost surely, 2^12144270 is an apocalyptic number.

12144270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12144270 is an abundant number, since it is smaller than the sum of its proper divisors (17116818).

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

12144270 is a wasteful number, since it uses less digits than its factorization.

12144270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 12144270 is about 3484.8629815245. The cubic root of 12144270 is about 229.8566845041.

Adding to 12144270 its reverse (7244121), we get a palindrome (19388391).

The spelling of 12144270 in words is "twelve million, one hundred forty-four thousand, two hundred seventy".