144444413 has 4 divisors (see below), whose sum is σ = 145080960. Its totient is φ = 143807868.

The previous prime is 144444383. The next prime is 144444431. The reversal of 144444413 is 314444441.

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 a cyclic number.

It is not a de Polignac number, because 144444413 - 2¹⁴ = 144428029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144444473) 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, 317933 + ... + 318386.

It is an arithmetic number, because the mean of its divisors is an integer number (36270240).

Almost surely, 2^144444413 is an apocalyptic number.

It is an amenable number.

144444413 is a deficient number, since it is larger than the sum of its proper divisors (636547).

144444413 is an equidigital number, since it uses as much as digits as its factorization.

144444413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636546.

The product of its digits is 12288, while the sum is 29.

The square root of 144444413 is about 12018.5029433786. The cubic root of 144444413 is about 524.6869341370.

Adding to 144444413 its reverse (314444441), we get a palindrome (458888854).

The spelling of 144444413 in words is "one hundred forty-four million, four hundred forty-four thousand, four hundred thirteen".