144322243 has 4 divisors (see below), whose sum is σ = 155423968. Its totient is φ = 133220520.

The previous prime is 144322229. The next prime is 144322247. The reversal of 144322243 is 342223441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342223441 = 7 ⋅48889063.

It is a cyclic number.

It is not a de Polignac number, because 144322243 - 2⁹ = 144321731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144322247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5550843 + ... + 5550868.

It is an arithmetic number, because the mean of its divisors is an integer number (38855992).

Almost surely, 2^144322243 is an apocalyptic number.

144322243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

144322243 is a deficient number, since it is larger than the sum of its proper divisors (11101725).

144322243 is a wasteful number, since it uses less digits than its factorization.

144322243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11101724.

The product of its digits is 4608, while the sum is 25.

The square root of 144322243 is about 12013.4192884457. The cubic root of 144322243 is about 524.5389669895.

Adding to 144322243 its reverse (342223441), we get a palindrome (486545684).

The spelling of 144322243 in words is "one hundred forty-four million, three hundred twenty-two thousand, two hundred forty-three".