144005816 has 8 divisors (see below), whose sum is σ = 270010920. Its totient is φ = 72002904.

The previous prime is 144005779. The next prime is 144005833. The reversal of 144005816 is 618500441.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9000356 + ... + 9000371.

It is an arithmetic number, because the mean of its divisors is an integer number (33751365).

Almost surely, 2^144005816 is an apocalyptic number.

It is an amenable number.

144005816 is a deficient number, since it is larger than the sum of its proper divisors (126005104).

144005816 is a wasteful number, since it uses less digits than its factorization.

144005816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18000733 (or 18000729 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 144005816 is about 12000.2423308865. The cubic root of 144005816 is about 524.1553353356.

The spelling of 144005816 in words is "one hundred forty-four million, five thousand, eight hundred sixteen".