144430155 has 16 divisors (see below), whose sum is σ = 256764960. Its totient is φ = 77029344.

The previous prime is 144430151. The next prime is 144430157. The reversal of 144430155 is 551034441.

It is a happy number.

144430155 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 144430155 - 2² = 144430151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (144430151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534792 + ... + 535061.

It is an arithmetic number, because the mean of its divisors is an integer number (16047810).

Almost surely, 2^144430155 is an apocalyptic number.

144430155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

144430155 is a deficient number, since it is larger than the sum of its proper divisors (112334805).

144430155 is a wasteful number, since it uses less digits than its factorization.

144430155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069867 (or 1069861 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 144430155 is about 12017.9097600207. The cubic root of 144430155 is about 524.6696697507.

Adding to 144430155 its reverse (551034441), we get a palindrome (695464596).

The spelling of 144430155 in words is "one hundred forty-four million, four hundred thirty thousand, one hundred fifty-five".