144459135 has 12 divisors (see below), whose sum is σ = 250395912. Its totient is φ = 77044848.

The previous prime is 144459131. The next prime is 144459143. The reversal of 144459135 is 531954441.

It is a happy number.

It is not a de Polignac number, because 144459135 - 2² = 144459131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144459135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144459131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1605057 + ... + 1605146.

It is an arithmetic number, because the mean of its divisors is an integer number (20866326).

Almost surely, 2^144459135 is an apocalyptic number.

144459135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

144459135 is a deficient number, since it is larger than the sum of its proper divisors (105936777).

144459135 is a wasteful number, since it uses less digits than its factorization.

144459135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3210214 (or 3210211 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 144459135 is about 12019.1154000617. The cubic root of 144459135 is about 524.7047591685.

The spelling of 144459135 in words is "one hundred forty-four million, four hundred fifty-nine thousand, one hundred thirty-five".