144115431999 has 32 divisors (see below), whose sum is σ = 243144185856. Its totient is φ = 73747761120.

The previous prime is 144115431983. The next prime is 144115432031. The reversal of 144115431999 is 999134511441.

It is a happy number.

It is not a de Polignac number, because 144115431999 - 2⁴ = 144115431983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144115431799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4640317 + ... + 4671270.

It is an arithmetic number, because the mean of its divisors is an integer number (7598255808).

Almost surely, 2^144115431999 is an apocalyptic number.

144115431999 is a deficient number, since it is larger than the sum of its proper divisors (99028753857).

144115431999 is a wasteful number, since it uses less digits than its factorization.

144115431999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9311675.

The product of its digits is 699840, while the sum is 51.

The spelling of 144115431999 in words is "one hundred forty-four billion, one hundred fifteen million, four hundred thirty-one thousand, nine hundred ninety-nine".