144442001 has 16 divisors (see below), whose sum is σ = 165034368. Its totient is φ = 125136000.

The previous prime is 144441943. The next prime is 144442003. The reversal of 144442001 is 100244441.

It is a happy number.

It is not a de Polignac number, because 144442001 - 2⁶ = 144441937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144442003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79301 + ... + 81101.

It is an arithmetic number, because the mean of its divisors is an integer number (10314648).

Almost surely, 2^144442001 is an apocalyptic number.

144442001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

144442001 is a deficient number, since it is larger than the sum of its proper divisors (20592367).

144442001 is a wasteful number, since it uses less digits than its factorization.

144442001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 144442001 is about 12018.4025976833. The cubic root of 144442001 is about 524.6840136320.

Adding to 144442001 its reverse (100244441), we get a palindrome (244686442).

The spelling of 144442001 in words is "one hundred forty-four million, four hundred forty-two thousand, one".