144404031 has 4 divisors (see below), whose sum is σ = 192538712. Its totient is φ = 96269352.

The previous prime is 144404023. The next prime is 144404033. The reversal of 144404031 is 130404441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130404441 = 3 ⋅43468147.

It is not a de Polignac number, because 144404031 - 2³ = 144404023 is a prime.

It is a super-2 number, since 2×144404031² = 41705048338097922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144403989 and 144404007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144404033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24067336 + ... + 24067341.

It is an arithmetic number, because the mean of its divisors is an integer number (48134678).

Almost surely, 2^144404031 is an apocalyptic number.

144404031 is a deficient number, since it is larger than the sum of its proper divisors (48134681).

144404031 is an equidigital number, since it uses as much as digits as its factorization.

144404031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48134680.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 144404031 is about 12016.8228330121. The cubic root of 144404031 is about 524.6380343974.

Adding to 144404031 its reverse (130404441), we get a palindrome (274808472).

The spelling of 144404031 in words is "one hundred forty-four million, four hundred four thousand, thirty-one".