144213305 has 16 divisors (see below), whose sum is σ = 175125888. Its totient is φ = 114000000.

The previous prime is 144213301. The next prime is 144213313. The reversal of 144213305 is 503312441.

It is not a de Polignac number, because 144213305 - 2² = 144213301 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144213301) 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 15 ways as a sum of consecutive naturals, for example, 189125 + ... + 189885.

It is an arithmetic number, because the mean of its divisors is an integer number (10945368).

Almost surely, 2^144213305 is an apocalyptic number.

It is an amenable number.

144213305 is a deficient number, since it is larger than the sum of its proper divisors (30912583).

144213305 is a wasteful number, since it uses less digits than its factorization.

144213305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168.

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

The square root of 144213305 is about 12008.8844194621. The cubic root of 144213305 is about 524.4069554384.

Adding to 144213305 its reverse (503312441), we get a palindrome (647525746).

The spelling of 144213305 in words is "one hundred forty-four million, two hundred thirteen thousand, three hundred five".