144305242 has 8 divisors (see below), whose sum is σ = 216576756. Its totient is φ = 72112992.

The previous prime is 144305237. The next prime is 144305303. The reversal of 144305242 is 242503441.

It is a happy number.

144305242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 104223681 + 40081561 = 10209^2 + 6331^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15033 + ... + 22684.

Almost surely, 2^144305242 is an apocalyptic number.

144305242 is a deficient number, since it is larger than the sum of its proper divisors (72271514).

144305242 is a wasteful number, since it uses less digits than its factorization.

144305242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39632.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 144305242 is about 12012.7116838789. The cubic root of 144305242 is about 524.5183694781.

Adding to 144305242 its reverse (242503441), we get a palindrome (386808683).

The spelling of 144305242 in words is "one hundred forty-four million, three hundred five thousand, two hundred forty-two".