144220655 has 4 divisors (see below), whose sum is σ = 173064792. Its totient is φ = 115376520.

The previous prime is 144220613. The next prime is 144220679. The reversal of 144220655 is 556022441.

144220655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 144220655 - 2¹⁰ = 144219631 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, 14422061 + ... + 14422070.

It is an arithmetic number, because the mean of its divisors is an integer number (43266198).

Almost surely, 2^144220655 is an apocalyptic number.

144220655 is a deficient number, since it is larger than the sum of its proper divisors (28844137).

144220655 is an equidigital number, since it uses as much as digits as its factorization.

144220655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28844136.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 144220655 is about 12009.1904389930. The cubic root of 144220655 is about 524.4158642920.

The spelling of 144220655 in words is "one hundred forty-four million, two hundred twenty thousand, six hundred fifty-five".