144240233 has 4 divisors (see below), whose sum is σ = 144924048. Its totient is φ = 143556420.

The previous prime is 144240209. The next prime is 144240247. The reversal of 144240233 is 332042441.

144240233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 144240233 - 2¹² = 144236137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144240199 and 144240208.

It is not an unprimeable number, because it can be changed into a prime (144240203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341591 + ... + 342012.

It is an arithmetic number, because the mean of its divisors is an integer number (36231012).

Almost surely, 2^144240233 is an apocalyptic number.

It is an amenable number.

144240233 is a deficient number, since it is larger than the sum of its proper divisors (683815).

144240233 is an equidigital number, since it uses as much as digits as its factorization.

144240233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683814.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 144240233 is about 12010.0055370512. The cubic root of 144240233 is about 524.4395930920.

Adding to 144240233 its reverse (332042441), we get a palindrome (476282674).

The spelling of 144240233 in words is "one hundred forty-four million, two hundred forty thousand, two hundred thirty-three".