144816387 has 16 divisors (see below), whose sum is σ = 209436192. Its totient is φ = 88647680.

The previous prime is 144816383. The next prime is 144816403. The reversal of 144816387 is 783618441.

It is a cyclic number.

It is not a de Polignac number, because 144816387 - 2² = 144816383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144816383) 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, 32538 + ... + 36719.

It is an arithmetic number, because the mean of its divisors is an integer number (13089762).

Almost surely, 2^144816387 is an apocalyptic number.

144816387 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

144816387 is a deficient number, since it is larger than the sum of its proper divisors (64619805).

144816387 is a wasteful number, since it uses less digits than its factorization.

144816387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69318.

The product of its digits is 129024, while the sum is 42.

The square root of 144816387 is about 12033.9680488191. The cubic root of 144816387 is about 525.1369402413.

The spelling of 144816387 in words is "one hundred forty-four million, eight hundred sixteen thousand, three hundred eighty-seven".