144452242 has 16 divisors (see below), whose sum is σ = 240838272. Its totient is φ = 64420720.

The previous prime is 144452239. The next prime is 144452279. The reversal of 144452242 is 242254441.

It is a super-3 number, since 3×144452242³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 144452242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60778 + ... + 63109.

It is an arithmetic number, because the mean of its divisors is an integer number (15052392).

Almost surely, 2^144452242 is an apocalyptic number.

144452242 is a deficient number, since it is larger than the sum of its proper divisors (96386030).

144452242 is a wasteful number, since it uses less digits than its factorization.

144452242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123953.

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

The square root of 144452242 is about 12018.8286450885. The cubic root of 144452242 is about 524.6964134463.

The spelling of 144452242 in words is "one hundred forty-four million, four hundred fifty-two thousand, two hundred forty-two".