144420055 has 8 divisors (see below), whose sum is σ = 186635232. Its totient is φ = 106648608.

The previous prime is 144420053. The next prime is 144420079. The reversal of 144420055 is 550024441.

It is a happy number.

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 144420055 - 2¹ = 144420053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144420053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1110859 + ... + 1110988.

It is an arithmetic number, because the mean of its divisors is an integer number (23329404).

Almost surely, 2^144420055 is an apocalyptic number.

144420055 is a deficient number, since it is larger than the sum of its proper divisors (42215177).

144420055 is a wasteful number, since it uses less digits than its factorization.

144420055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221865.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 144420055 is about 12017.4895464901. The cubic root of 144420055 is about 524.6574394165.

Adding to 144420055 its reverse (550024441), we get a palindrome (694444496).

The spelling of 144420055 in words is "one hundred forty-four million, four hundred twenty thousand, fifty-five".