144005812 has 24 divisors (see below), whose sum is σ = 255960320. Its totient is φ = 70882560.

The previous prime is 144005779. The next prime is 144005833. The reversal of 144005812 is 218500441.

144005812 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 in 7 ways as a sum of consecutive naturals, for example, 80989 + ... + 82747.

Almost surely, 2^144005812 is an apocalyptic number.

It is an amenable number.

144005812 is a deficient number, since it is larger than the sum of its proper divisors (111954508).

144005812 is a wasteful number, since it uses less digits than its factorization.

144005812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2071 (or 2069 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 144005812 is about 12000.2421642232. The cubic root of 144005812 is about 524.1553304825.

The spelling of 144005812 in words is "one hundred forty-four million, five thousand, eight hundred twelve".