144112321505 has 4 divisors (see below), whose sum is σ = 172934785812. Its totient is φ = 115289857200.

The previous prime is 144112321481. The next prime is 144112321531. The reversal of 144112321505 is 505123211441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 505123211441 = 146777 ⋅3441433.

It can be written as a sum of positive squares in 2 ways, for example, as 63383601121 + 80728720384 = 251761^2 + 284128^2 .

It is not a de Polignac number, because 144112321505 - 2¹⁰ = 144112320481 is a prime.

It is a super-2 number, since 2×144112321505² (a number of 23 digits) contains 22 as substring.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 14411232146 + ... + 14411232155.

It is an arithmetic number, because the mean of its divisors is an integer number (43233696453).

Almost surely, 2^144112321505 is an apocalyptic number.

It is an amenable number.

144112321505 is a deficient number, since it is larger than the sum of its proper divisors (28822464307).

144112321505 is an equidigital number, since it uses as much as digits as its factorization.

144112321505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28822464306.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 144112321505 its reverse (505123211441), we get a palindrome (649235532946).

The spelling of 144112321505 in words is "one hundred forty-four billion, one hundred twelve million, three hundred twenty-one thousand, five hundred five".