144324401 has 4 divisors (see below), whose sum is σ = 155426292. Its totient is φ = 133222512.

The previous prime is 144324359. The next prime is 144324419. The reversal of 144324401 is 104423441.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 91776400 + 52548001 = 9580^2 + 7249^2 .

It is a cyclic number.

It is not a de Polignac number, because 144324401 - 2²² = 140130097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144324421) 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, 5550926 + ... + 5550951.

It is an arithmetic number, because the mean of its divisors is an integer number (38856573).

Almost surely, 2^144324401 is an apocalyptic number.

It is an amenable number.

144324401 is a deficient number, since it is larger than the sum of its proper divisors (11101891).

144324401 is a wasteful number, since it uses less digits than its factorization.

144324401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11101890.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 144324401 is about 12013.5091043375. The cubic root of 144324401 is about 524.5415813924.

Adding to 144324401 its reverse (104423441), we get a palindrome (248747842).

The spelling of 144324401 in words is "one hundred forty-four million, three hundred twenty-four thousand, four hundred one".