144534321 has 32 divisors (see below), whose sum is σ = 221616000. Its totient is φ = 93026880.

The previous prime is 144534287. The next prime is 144534329. The reversal of 144534321 is 123435441.

It is a happy number.

144534321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 144534321 - 2¹⁹ = 144010033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (144534329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148366 + ... + 149336.

It is an arithmetic number, because the mean of its divisors is an integer number (6925500).

Almost surely, 2^144534321 is an apocalyptic number.

It is an amenable number.

144534321 is a deficient number, since it is larger than the sum of its proper divisors (77081679).

144534321 is a wasteful number, since it uses less digits than its factorization.

144534321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166 (or 1160 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 144534321 is about 12022.2427608163. The cubic root of 144534321 is about 524.7957736269.

Adding to 144534321 its reverse (123435441), we get a palindrome (267969762).

The spelling of 144534321 in words is "one hundred forty-four million, five hundred thirty-four thousand, three hundred twenty-one".