144021233 has 16 divisors (see below), whose sum is σ = 152245632. Its totient is φ = 136080000.

The previous prime is 144021209. The next prime is 144021277. The reversal of 144021233 is 332120441.

144021233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 144021233 - 2¹⁴ = 144004849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144021203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265943 + ... + 266483.

It is an arithmetic number, because the mean of its divisors is an integer number (9515352).

Almost surely, 2^144021233 is an apocalyptic number.

It is an amenable number.

144021233 is a deficient number, since it is larger than the sum of its proper divisors (8224399).

144021233 is a wasteful number, since it uses less digits than its factorization.

144021233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 144021233 is about 12000.8846757229. The cubic root of 144021233 is about 524.1740397062.

Adding to 144021233 its reverse (332120441), we get a palindrome (476141674).

The spelling of 144021233 in words is "one hundred forty-four million, twenty-one thousand, two hundred thirty-three".