144420544 has 14 divisors (see below), whose sum is σ = 286584644. Its totient is φ = 72210240.

The previous prime is 144420541. The next prime is 144420547. The reversal of 144420544 is 445024441.

It is an interprime number because it is at equal distance from previous prime (144420541) and next prime (144420547).

It is not an unprimeable number, because it can be changed into a prime (144420541) 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 as a sum of consecutive naturals, namely, 1128222 + ... + 1128349.

Almost surely, 2^144420544 is an apocalyptic number.

It is an amenable number.

144420544 is a deficient number, since it is larger than the sum of its proper divisors (142164100).

144420544 is an equidigital number, since it uses as much as digits as its factorization.

144420544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256583 (or 2256573 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 28.

The square root of 144420544 is about 12017.5098918204. The cubic root of 144420544 is about 524.6580315715.

Adding to 144420544 its reverse (445024441), we get a palindrome (589444985).

The spelling of 144420544 in words is "one hundred forty-four million, four hundred twenty thousand, five hundred forty-four".