144102489 has 16 divisors (see below), whose sum is σ = 205001280. Its totient is φ = 89722880.

The previous prime is 144102487. The next prime is 144102499. The reversal of 144102489 is 984201441.

It is a cyclic number.

It is not a de Polignac number, because 144102489 - 2¹ = 144102487 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (144102487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4104 + ... + 17465.

It is an arithmetic number, because the mean of its divisors is an integer number (12812580).

Almost surely, 2^144102489 is an apocalyptic number.

It is an amenable number.

144102489 is a deficient number, since it is larger than the sum of its proper divisors (60898791).

144102489 is a wasteful number, since it uses less digits than its factorization.

144102489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21720.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 144102489 is about 12004.2696154327. The cubic root of 144102489 is about 524.2725998914.

The spelling of 144102489 in words is "one hundred forty-four million, one hundred two thousand, four hundred eighty-nine".