144124321 has 4 divisors (see below), whose sum is σ = 157226544. Its totient is φ = 131022100.

The previous prime is 144124313. The next prime is 144124333. The reversal of 144124321 is 123421441.

It is a happy number.

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 not a de Polignac number, because 144124321 - 2³ = 144124313 is a prime.

It is a super-2 number, since 2×144124321² = 41543639807422082, 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 = 144124292 and 144124301.

It is not an unprimeable number, because it can be changed into a prime (144124121) 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, 6551095 + ... + 6551116.

It is an arithmetic number, because the mean of its divisors is an integer number (39306636).

Almost surely, 2^144124321 is an apocalyptic number.

144124321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

144124321 is a deficient number, since it is larger than the sum of its proper divisors (13102223).

144124321 is a wasteful number, since it uses less digits than its factorization.

144124321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13102222.

The product of its digits is 768, while the sum is 22.

The square root of 144124321 is about 12005.1789241144. The cubic root of 144124321 is about 524.2990748942.

Adding to 144124321 its reverse (123421441), we get a palindrome (267545762).

The spelling of 144124321 in words is "one hundred forty-four million, one hundred twenty-four thousand, three hundred twenty-one".