144270321 has 8 divisors (see below), whose sum is σ = 207157440. Its totient is φ = 88781712.

The previous prime is 144270317. The next prime is 144270323. The reversal of 144270321 is 123072441.

It is a happy number.

144270321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 144270321 - 2² = 144270317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144270291 and 144270300.

It is not an unprimeable number, because it can be changed into a prime (144270323) 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, 1849581 + ... + 1849658.

It is an arithmetic number, because the mean of its divisors is an integer number (25894680).

Almost surely, 2^144270321 is an apocalyptic number.

It is an amenable number.

144270321 is a deficient number, since it is larger than the sum of its proper divisors (62887119).

144270321 is a wasteful number, since it uses less digits than its factorization.

144270321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3699255.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 144270321 is about 12011.2580939717. The cubic root of 144270321 is about 524.4760559686.

The spelling of 144270321 in words is "one hundred forty-four million, two hundred seventy thousand, three hundred twenty-one".