144120401 has 8 divisors (see below), whose sum is σ = 149356200. Its totient is φ = 138902400.

The previous prime is 144120367. The next prime is 144120413. The reversal of 144120401 is 104021441.

It can be written as a sum of positive squares in 4 ways, for example, as 80120401 + 64000000 = 8951^2 + 8000^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144120401 - 2²⁶ = 77011537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144120401.

It is not an unprimeable number, because it can be changed into a prime (144120451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13295 + ... + 21563.

It is an arithmetic number, because the mean of its divisors is an integer number (18669525).

Almost surely, 2^144120401 is an apocalyptic number.

It is an amenable number.

144120401 is a deficient number, since it is larger than the sum of its proper divisors (5235799).

144120401 is an equidigital number, since it uses as much as digits as its factorization.

144120401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8899.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 144120401 is about 12005.0156601314. The cubic root of 144120401 is about 524.2943214263.

Adding to 144120401 its reverse (104021441), we get a palindrome (248141842).

The spelling of 144120401 in words is "one hundred forty-four million, one hundred twenty thousand, four hundred one".