144305213 has 12 divisors (see below), whose sum is σ = 157409280. Its totient is φ = 132224976.

The previous prime is 144305179. The next prime is 144305219. The reversal of 144305213 is 312503441.

It is not a de Polignac number, because 144305213 - 2⁶ = 144305149 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 (144305219) 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, 20420 + ... + 26562.

It is an arithmetic number, because the mean of its divisors is an integer number (13117440).

Almost surely, 2^144305213 is an apocalyptic number.

144305213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

144305213 is a deficient number, since it is larger than the sum of its proper divisors (13104067).

144305213 is a wasteful number, since it uses less digits than its factorization.

144305213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6308 (or 6295 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 144305213 is about 12012.7104768241. The cubic root of 144305213 is about 524.5183343418.

Adding to 144305213 its reverse (312503441), we get a palindrome (456808654).

The spelling of 144305213 in words is "one hundred forty-four million, three hundred five thousand, two hundred thirteen".