144418459 has 4 divisors (see below), whose sum is σ = 144672840. Its totient is φ = 144164080.

The previous prime is 144418409. The next prime is 144418471. The reversal of 144418459 is 954814441.

It is a happy number.

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 144418459 - 2⁹ = 144417947 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144418409) 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, 126337 + ... + 127474.

It is an arithmetic number, because the mean of its divisors is an integer number (36168210).

Almost surely, 2^144418459 is an apocalyptic number.

144418459 is a deficient number, since it is larger than the sum of its proper divisors (254381).

144418459 is an equidigital number, since it uses as much as digits as its factorization.

144418459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254380.

The product of its digits is 92160, while the sum is 40.

The square root of 144418459 is about 12017.4231430869. The cubic root of 144418459 is about 524.6555067293.

The spelling of 144418459 in words is "one hundred forty-four million, four hundred eighteen thousand, four hundred fifty-nine".