144424313 has 4 divisors (see below), whose sum is σ = 157553808. Its totient is φ = 131294820.

The previous prime is 144424309. The next prime is 144424327. The reversal of 144424313 is 313424441.

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, and also an emirpimes, since its reverse is a distinct semiprime: 313424441 = 11 ⋅28493131.

It is a cyclic number.

It is not a de Polignac number, because 144424313 - 2² = 144424309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (144424303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6564731 + ... + 6564752.

It is an arithmetic number, because the mean of its divisors is an integer number (39388452).

Almost surely, 2^144424313 is an apocalyptic number.

It is an amenable number.

144424313 is a deficient number, since it is larger than the sum of its proper divisors (13129495).

144424313 is a wasteful number, since it uses less digits than its factorization.

144424313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13129494.

The product of its digits is 4608, while the sum is 26.

The square root of 144424313 is about 12017.6667036493. Note that the first 3 decimals coincide. The cubic root of 144424313 is about 524.6625956011.

Adding to 144424313 its reverse (313424441), we get a palindrome (457848754).

The spelling of 144424313 in words is "one hundred forty-four million, four hundred twenty-four thousand, three hundred thirteen".