144134321 has 8 divisors (see below), whose sum is σ = 150058920. Its totient is φ = 138273408.

The previous prime is 144134317. The next prime is 144134357. The reversal of 144134321 is 123431441.

It can be written as a sum of positive squares in 4 ways, for example, as 11999296 + 132135025 = 3464^2 + 11495^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 144134321 - 2² = 144134317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144134371) 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, 11276 + ... + 20381.

It is an arithmetic number, because the mean of its divisors is an integer number (18757365).

Almost surely, 2^144134321 is an apocalyptic number.

It is an amenable number.

144134321 is a deficient number, since it is larger than the sum of its proper divisors (5924599).

144134321 is a wasteful number, since it uses less digits than its factorization.

144134321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31843.

The product of its digits is 1152, while the sum is 23.

The square root of 144134321 is about 12005.5954038107. The cubic root of 144134321 is about 524.3112006975.

Adding to 144134321 its reverse (123431441), we get a palindrome (267565762).

The spelling of 144134321 in words is "one hundred forty-four million, one hundred thirty-four thousand, three hundred twenty-one".