144532189 has 4 divisors (see below), whose sum is σ = 146512156. Its totient is φ = 142552224.

The previous prime is 144532151. The next prime is 144532237. The reversal of 144532189 is 981235441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 981235441 = 8669 ⋅113189.

It can be written as a sum of positive squares in 2 ways, for example, as 89624089 + 54908100 = 9467^2 + 7410^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144532189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144532109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 989874 + ... + 990019.

It is an arithmetic number, because the mean of its divisors is an integer number (36628039).

Almost surely, 2^144532189 is an apocalyptic number.

It is an amenable number.

144532189 is a deficient number, since it is larger than the sum of its proper divisors (1979967).

144532189 is an equidigital number, since it uses as much as digits as its factorization.

144532189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1979966.

The product of its digits is 34560, while the sum is 37.

The square root of 144532189 is about 12022.1540915096. The cubic root of 144532189 is about 524.7931932246.

The spelling of 144532189 in words is "one hundred forty-four million, five hundred thirty-two thousand, one hundred eighty-nine".