144865616 has 40 divisors (see below), whose sum is σ = 321985344. Its totient is φ = 61850880.

The previous prime is 144865603. The next prime is 144865621. The reversal of 144865616 is 616568441.

144865616 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29171 + ... + 33773.

Almost surely, 2^144865616 is an apocalyptic number.

144865616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

144865616 is an abundant number, since it is smaller than the sum of its proper divisors (177119728).

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

144865616 is a wasteful number, since it uses less digits than its factorization.

144865616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4899 (or 4893 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 144865616 is about 12036.0132934456. The cubic root of 144865616 is about 525.1964386589.

It can be divided in two parts, 14486 and 5616, that added together give a palindrome (20102).

The spelling of 144865616 in words is "one hundred forty-four million, eight hundred sixty-five thousand, six hundred sixteen".