144334221 has 8 divisors (see below), whose sum is σ = 193053984. Its totient is φ = 95918640.

The previous prime is 144334219. The next prime is 144334277. The reversal of 144334221 is 122433441.

144334221 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 144334221 - 2¹ = 144334219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144334191 and 144334200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144334291) 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, 74935 + ... + 76836.

It is an arithmetic number, because the mean of its divisors is an integer number (24131748).

Almost surely, 2^144334221 is an apocalyptic number.

It is an amenable number.

144334221 is a deficient number, since it is larger than the sum of its proper divisors (48719763).

144334221 is a wasteful number, since it uses less digits than its factorization.

144334221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152091.

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

The square root of 144334221 is about 12013.9178039472. The cubic root of 144334221 is about 524.5534779289.

Adding to 144334221 its reverse (122433441), we get a palindrome (266767662).

The spelling of 144334221 in words is "one hundred forty-four million, three hundred thirty-four thousand, two hundred twenty-one".