144013321 has 8 divisors (see below), whose sum is σ = 152117504. Its totient is φ = 136125360.

The previous prime is 144013297. The next prime is 144013379. The reversal of 144013321 is 123310441.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144013321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144013721) 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 7 ways as a sum of consecutive naturals, for example, 52686 + ... + 55351.

It is an arithmetic number, because the mean of its divisors is an integer number (19014688).

Almost surely, 2^144013321 is an apocalyptic number.

It is an amenable number.

144013321 is a deficient number, since it is larger than the sum of its proper divisors (8104183).

144013321 is a wasteful number, since it uses less digits than its factorization.

144013321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108111.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 144013321 is about 12000.5550288310. Note that the first 3 decimals coincide. The cubic root of 144013321 is about 524.1644407953.

Adding to 144013321 its reverse (123310441), we get a palindrome (267323762).

The spelling of 144013321 in words is "one hundred forty-four million, thirteen thousand, three hundred twenty-one".