144442401 has 4 divisors (see below), whose sum is σ = 192589872. Its totient is φ = 96294932.

The previous prime is 144442393. The next prime is 144442429. The reversal of 144442401 is 104244441.

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.

It is a cyclic number.

It is not a de Polignac number, because 144442401 - 2³ = 144442393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144442451) 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, 24073731 + ... + 24073736.

It is an arithmetic number, because the mean of its divisors is an integer number (48147468).

Almost surely, 2^144442401 is an apocalyptic number.

It is an amenable number.

144442401 is a deficient number, since it is larger than the sum of its proper divisors (48147471).

144442401 is an equidigital number, since it uses as much as digits as its factorization.

144442401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48147470.

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 144442401 is about 12018.4192388184. The cubic root of 144442401 is about 524.6844979634.

Adding to 144442401 its reverse (104244441), we get a palindrome (248686842).

The spelling of 144442401 in words is "one hundred forty-four million, four hundred forty-two thousand, four hundred one".