144935189 has 6 divisors (see below), whose sum is σ = 168598134. Its totient is φ = 124230120.

The previous prime is 144935171. The next prime is 144935191. The reversal of 144935189 is 981539441.

It can be written as a sum of positive squares in only one way, i.e., 139948900 + 4986289 = 11830^2 + 2233^2 .

It is a de Polignac number, because none of the positive numbers 2^k-144935189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144935129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1478882 + ... + 1478979.

It is an arithmetic number, because the mean of its divisors is an integer number (28099689).

Almost surely, 2^144935189 is an apocalyptic number.

It is an amenable number.

144935189 is a deficient number, since it is larger than the sum of its proper divisors (23662945).

144935189 is an equidigital number, since it uses as much as digits as its factorization.

144935189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2957875 (or 2957868 counting only the distinct ones).

The product of its digits is 155520, while the sum is 44.

The square root of 144935189 is about 12038.9031477124. The cubic root of 144935189 is about 525.2805019559.

The spelling of 144935189 in words is "one hundred forty-four million, nine hundred thirty-five thousand, one hundred eighty-nine".