144323231 has 4 divisors (see below), whose sum is σ = 155425032. Its totient is φ = 133221432.

The previous prime is 144323203. The next prime is 144323269. The reversal of 144323231 is 132323441.

144323231 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.

It is a cyclic number.

It is not a de Polignac number, because 144323231 - 2¹⁰ = 144322207 is a prime.

It is a super-2 number, since 2×144323231² = 41658390012558722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144323197 and 144323206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144323281) 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, 5550881 + ... + 5550906.

It is an arithmetic number, because the mean of its divisors is an integer number (38856258).

Almost surely, 2^144323231 is an apocalyptic number.

144323231 is a deficient number, since it is larger than the sum of its proper divisors (11101801).

144323231 is a wasteful number, since it uses less digits than its factorization.

144323231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11101800.

The product of its digits is 1728, while the sum is 23.

The square root of 144323231 is about 12013.4604090578. The cubic root of 144323231 is about 524.5401639483.

Adding to 144323231 its reverse (132323441), we get a palindrome (276646672).

The spelling of 144323231 in words is "one hundred forty-four million, three hundred twenty-three thousand, two hundred thirty-one".