144064321 has 4 divisors (see below), whose sum is σ = 145888000. Its totient is φ = 142240644.

The previous prime is 144064313. The next prime is 144064339. The reversal of 144064321 is 123460441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 144064321 - 2³ = 144064313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144064621) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 911721 + ... + 911878.

It is an arithmetic number, because the mean of its divisors is an integer number (36472000).

Almost surely, 2^144064321 is an apocalyptic number.

It is an amenable number.

144064321 is a deficient number, since it is larger than the sum of its proper divisors (1823679).

144064321 is an equidigital number, since it uses as much as digits as its factorization.

144064321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823678.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 144064321 is about 12002.6797424575. The cubic root of 144064321 is about 524.2263082932.

The spelling of 144064321 in words is "one hundred forty-four million, sixty-four thousand, three hundred twenty-one".