144288855 has 24 divisors (see below), whose sum is σ = 253838832. Its totient is φ = 75803904.

The previous prime is 144288853. The next prime is 144288883. The reversal of 144288855 is 558882441.

144288855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 144288855 - 2¹ = 144288853 is a prime.

It is a super-2 number, since 2×144288855² = 41638547354422050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 144288855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144288853) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20914 + ... + 26943.

It is an arithmetic number, because the mean of its divisors is an integer number (10576618).

Almost surely, 2^144288855 is an apocalyptic number.

144288855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

144288855 is a deficient number, since it is larger than the sum of its proper divisors (109549977).

144288855 is a wasteful number, since it uses less digits than its factorization.

144288855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47935 (or 47932 counting only the distinct ones).

The product of its digits is 409600, while the sum is 45.

The square root of 144288855 is about 12012.0295953681. The cubic root of 144288855 is about 524.4985143253.

The spelling of 144288855 in words is "one hundred forty-four million, two hundred eighty-eight thousand, eight hundred fifty-five".