144378485 has 4 divisors (see below), whose sum is σ = 173254188. Its totient is φ = 115502784.

The previous prime is 144378469. The next prime is 144378491. The reversal of 144378485 is 584873441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 106543684 + 37834801 = 10322^2 + 6151^2 .

It is a cyclic number.

It is not a de Polignac number, because 144378485 - 2⁴ = 144378469 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 14437844 + ... + 14437853.

It is an arithmetic number, because the mean of its divisors is an integer number (43313547).

Almost surely, 2^144378485 is an apocalyptic number.

It is an amenable number.

144378485 is a deficient number, since it is larger than the sum of its proper divisors (28875703).

144378485 is an equidigital number, since it uses as much as digits as its factorization.

144378485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28875702.

The product of its digits is 430080, while the sum is 44.

The square root of 144378485 is about 12015.7598594513. The cubic root of 144378485 is about 524.6070952943.

It can be divided in two parts, 14437 and 8485, that added together give a palindrome (22922).

The spelling of 144378485 in words is "one hundred forty-four million, three hundred seventy-eight thousand, four hundred eighty-five".