144160309 has 6 divisors (see below), whose sum is σ = 144845250. Its totient is φ = 143478576.

The previous prime is 144160307. The next prime is 144160337. The reversal of 144160309 is 903061441.

It can be written as a sum of positive squares in 3 ways, for example, as 59336209 + 84824100 = 7703^2 + 9210^2 .

It is not a de Polignac number, because 144160309 - 2¹ = 144160307 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 (144160301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51067 + ... + 53815.

It is an arithmetic number, because the mean of its divisors is an integer number (24140875).

Almost surely, 2^144160309 is an apocalyptic number.

It is an amenable number.

144160309 is a deficient number, since it is larger than the sum of its proper divisors (684941).

144160309 is an frugal number, since it uses more digits than its factorization.

144160309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3207 (or 2978 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 144160309 is about 12006.6776836892. The cubic root of 144160309 is about 524.3427106126.

The spelling of 144160309 in words is "one hundred forty-four million, one hundred sixty thousand, three hundred nine".