144431421215 has 32 divisors (see below), whose sum is σ = 184878832320. Its totient is φ = 108136677376.

The previous prime is 144431421209. The next prime is 144431421227. The reversal of 144431421215 is 512124134441.

It is not a de Polignac number, because 144431421215 - 2¹⁸ = 144431159071 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 524639 + ... + 751071.

It is an arithmetic number, because the mean of its divisors is an integer number (5777463510).

Almost surely, 2^144431421215 is an apocalyptic number.

144431421215 is a deficient number, since it is larger than the sum of its proper divisors (40447411105).

144431421215 is a wasteful number, since it uses less digits than its factorization.

144431421215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226603.

The product of its digits is 15360, while the sum is 32.

Adding to 144431421215 its reverse (512124134441), we get a palindrome (656555555656).

The spelling of 144431421215 in words is "one hundred forty-four billion, four hundred thirty-one million, four hundred twenty-one thousand, two hundred fifteen".