144042401 has 4 divisors (see below), whose sum is σ = 151623600. Its totient is φ = 136461204.

The previous prime is 144042341. The next prime is 144042403. The reversal of 144042401 is 104240441.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 104240441 = 19 ⋅5486339.

It is a cyclic number.

It is not a de Polignac number, because 144042401 - 2¹⁴ = 144026017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144042403) 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, 3790571 + ... + 3790608.

It is an arithmetic number, because the mean of its divisors is an integer number (37905900).

Almost surely, 2^144042401 is an apocalyptic number.

It is an amenable number.

144042401 is a deficient number, since it is larger than the sum of its proper divisors (7581199).

144042401 is an equidigital number, since it uses as much as digits as its factorization.

144042401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7581198.

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

The square root of 144042401 is about 12001.7665783000. The cubic root of 144042401 is about 524.1997191894.

Adding to 144042401 its reverse (104240441), we get a palindrome (248282842).

The spelling of 144042401 in words is "one hundred forty-four million, forty-two thousand, four hundred one".