144442255 has 4 divisors (see below), whose sum is σ = 173330712. Its totient is φ = 115553800.

The previous prime is 144442247. The next prime is 144442273. The reversal of 144442255 is 552244441.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 144442255 - 2³ = 144442247 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 14444221 + ... + 14444230.

It is an arithmetic number, because the mean of its divisors is an integer number (43332678).

Almost surely, 2^144442255 is an apocalyptic number.

144442255 is a deficient number, since it is larger than the sum of its proper divisors (28888457).

144442255 is an equidigital number, since it uses as much as digits as its factorization.

144442255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28888456.

The product of its digits is 25600, while the sum is 31.

The square root of 144442255 is about 12018.4131648067. The cubic root of 144442255 is about 524.6843211825.

Adding to 144442255 its reverse (552244441), we get a palindrome (696686696).

The spelling of 144442255 in words is "one hundred forty-four million, four hundred forty-two thousand, two hundred fifty-five".