144242555 has 8 divisors (see below), whose sum is σ = 173275872. Its totient is φ = 115270848.

The previous prime is 144242531. The next prime is 144242561. The reversal of 144242555 is 555242441.

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

It is a cyclic number.

It is not a de Polignac number, because 144242555 - 2⁸ = 144242299 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10082 + ... + 19751.

It is an arithmetic number, because the mean of its divisors is an integer number (21659484).

Almost surely, 2^144242555 is an apocalyptic number.

144242555 is a deficient number, since it is larger than the sum of its proper divisors (29033317).

144242555 is an equidigital number, since it uses as much as digits as its factorization.

144242555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30805.

The product of its digits is 32000, while the sum is 32.

The square root of 144242555 is about 12010.1022060597. The cubic root of 144242555 is about 524.4424072449.

Adding to 144242555 its reverse (555242441), we get a palindrome (699484996).

The spelling of 144242555 in words is "one hundred forty-four million, two hundred forty-two thousand, five hundred fifty-five".