144431242 has 8 divisors (see below), whose sum is σ = 216743076. Its totient is φ = 72183552.

The previous prime is 144431227. The next prime is 144431257. The reversal of 144431242 is 242134441.

144431242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (144431227) and next prime (144431257).

It can be written as a sum of positive squares in 2 ways, for example, as 95277121 + 49154121 = 9761^2 + 7011^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 9943 + ... + 19690.

Almost surely, 2^144431242 is an apocalyptic number.

144431242 is a deficient number, since it is larger than the sum of its proper divisors (72311834).

144431242 is a wasteful number, since it uses less digits than its factorization.

144431242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32072.

The product of its digits is 3072, while the sum is 25.

The square root of 144431242 is about 12017.9549841061. The cubic root of 144431242 is about 524.6709859913.

Adding to 144431242 its reverse (242134441), we get a palindrome (386565683).

The spelling of 144431242 in words is "one hundred forty-four million, four hundred thirty-one thousand, two hundred forty-two".