144165816 has 24 divisors (see below), whose sum is σ = 390449280. Its totient is φ = 48055248.

The previous prime is 144165811. The next prime is 144165821. The reversal of 144165816 is 618561441.

It is an interprime number because it is at equal distance from previous prime (144165811) and next prime (144165821).

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144165811) 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, 1001080 + ... + 1001223.

It is an arithmetic number, because the mean of its divisors is an integer number (16268720).

Almost surely, 2^144165816 is an apocalyptic number.

It is an amenable number.

144165816 is an abundant number, since it is smaller than the sum of its proper divisors (246283464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144165816 is a wasteful number, since it uses less digits than its factorization.

144165816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002315 (or 2002308 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 144165816 is about 12006.9070122159. The cubic root of 144165816 is about 524.3493872504.

The spelling of 144165816 in words is "one hundred forty-four million, one hundred sixty-five thousand, eight hundred sixteen".