144404155 has 16 divisors (see below), whose sum is σ = 203394240. Its totient is φ = 96342912.

The previous prime is 144404149. The next prime is 144404167. The reversal of 144404155 is 551404441.

It is a cyclic number.

It is not a de Polignac number, because 144404155 - 2¹⁵ = 144371387 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 54460 + ... + 57049.

It is an arithmetic number, because the mean of its divisors is an integer number (12712140).

Almost surely, 2^144404155 is an apocalyptic number.

144404155 is a deficient number, since it is larger than the sum of its proper divisors (58990085).

144404155 is a wasteful number, since it uses less digits than its factorization.

144404155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111558.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 144404155 is about 12016.8279924446. The cubic root of 144404155 is about 524.6381845666.

Adding to 144404155 its reverse (551404441), we get a palindrome (695808596).

The spelling of 144404155 in words is "one hundred forty-four million, four hundred four thousand, one hundred fifty-five".