144585442 has 32 divisors (see below), whose sum is σ = 236328192. Its totient is φ = 66081024.

The previous prime is 144585409. The next prime is 144585443. The reversal of 144585442 is 244585441.

It is not an unprimeable number, because it can be changed into a prime (144585443) 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 15 ways as a sum of consecutive naturals, for example, 276193 + ... + 276715.

It is an arithmetic number, because the mean of its divisors is an integer number (7385256).

Almost surely, 2^144585442 is an apocalyptic number.

144585442 is a deficient number, since it is larger than the sum of its proper divisors (91742750).

144585442 is a wasteful number, since it uses less digits than its factorization.

144585442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762.

The product of its digits is 102400, while the sum is 37.

The square root of 144585442 is about 12024.3686736560. The cubic root of 144585442 is about 524.8576388001.

Subtracting 144585442 from its reverse (244585441), we obtain a palindrome (99999999).

It can be divided in two parts, 14458 and 5442, that added together give a triangular number (19900 = T₁₉₉).

The spelling of 144585442 in words is "one hundred forty-four million, five hundred eighty-five thousand, four hundred forty-two".