144785121 has 16 divisors (see below), whose sum is σ = 208152000. Its totient is φ = 88989120.

The previous prime is 144785099. The next prime is 144785129. The reversal of 144785121 is 121587441.

It is not a de Polignac number, because 144785121 - 2⁵ = 144785089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144785129) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 39630 + ... + 43128.

It is an arithmetic number, because the mean of its divisors is an integer number (13009500).

Almost surely, 2^144785121 is an apocalyptic number.

It is an amenable number.

144785121 is a deficient number, since it is larger than the sum of its proper divisors (63366879).

144785121 is a wasteful number, since it uses less digits than its factorization.

144785121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4576.

The product of its digits is 8960, while the sum is 33.

The square root of 144785121 is about 12032.6689059410. The cubic root of 144785121 is about 525.0991449943.

It can be divided in two parts, 1447 and 85121, that added together give a palindrome (86568).

The spelling of 144785121 in words is "one hundred forty-four million, seven hundred eighty-five thousand, one hundred twenty-one".