144442165 has 16 divisors (see below), whose sum is σ = 199127808. Its totient is φ = 98528256.

The previous prime is 144442159. The next prime is 144442169. The reversal of 144442165 is 561244441.

It is a cyclic number.

It is not a de Polignac number, because 144442165 - 2³ = 144442157 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 (144442169) 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, 3937 + ... + 17446.

It is an arithmetic number, because the mean of its divisors is an integer number (12445488).

Almost surely, 2^144442165 is an apocalyptic number.

It is an amenable number.

144442165 is a deficient number, since it is larger than the sum of its proper divisors (54685643).

144442165 is a wasteful number, since it uses less digits than its factorization.

144442165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21588.

The product of its digits is 15360, while the sum is 31.

The square root of 144442165 is about 12018.4094205515. The cubic root of 144442165 is about 524.6842122080.

The spelling of 144442165 in words is "one hundred forty-four million, four hundred forty-two thousand, one hundred sixty-five".