144421233 has 8 divisors (see below), whose sum is σ = 210067296. Its totient is φ = 87528000.

The previous prime is 144421231. The next prime is 144421241. The reversal of 144421233 is 332124441.

144421233 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 144421233 - 2¹ = 144421231 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (144421231) 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, 2188168 + ... + 2188233.

It is an arithmetic number, because the mean of its divisors is an integer number (26258412).

Almost surely, 2^144421233 is an apocalyptic number.

It is an amenable number.

144421233 is a deficient number, since it is larger than the sum of its proper divisors (65646063).

144421233 is a wasteful number, since it uses less digits than its factorization.

144421233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4376415.

The product of its digits is 2304, while the sum is 24.

The square root of 144421233 is about 12017.5385582905. The cubic root of 144421233 is about 524.6588659145.

Adding to 144421233 its reverse (332124441), we get a palindrome (476545674).

The spelling of 144421233 in words is "one hundred forty-four million, four hundred twenty-one thousand, two hundred thirty-three".