144423012 has 24 divisors (see below), whose sum is σ = 337601376. Its totient is φ = 48053248.

The previous prime is 144422983. The next prime is 144423023. The reversal of 144423012 is 210324441.

It is a self number, because there is not a number n which added to its sum of digits gives 144423012.

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 7 ways as a sum of consecutive naturals, for example, 3933 + ... + 17444.

It is an arithmetic number, because the mean of its divisors is an integer number (14066724).

Almost surely, 2^144423012 is an apocalyptic number.

144423012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

144423012 is an abundant number, since it is smaller than the sum of its proper divisors (193178364).

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

144423012 is a wasteful number, since it uses less digits than its factorization.

144423012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21947 (or 21945 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 144423012 is about 12017.6125748836. The cubic root of 144423012 is about 524.6610201783.

Adding to 144423012 its reverse (210324441), we get a palindrome (354747453).

The spelling of 144423012 in words is "one hundred forty-four million, four hundred twenty-three thousand, twelve".