144112121 has 4 divisors (see below), whose sum is σ = 144379044. Its totient is φ = 143845200.

The previous prime is 144112103. The next prime is 144112159. The reversal of 144112121 is 121211441.

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 109725625 + 34386496 = 10475^2 + 5864^2 .

It is a cyclic number.

It is not a de Polignac number, because 144112121 - 2¹⁴ = 144095737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144112121.

It is not an unprimeable number, because it can be changed into a prime (144112421) by changing a digit.

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, 132650 + ... + 133731.

It is an arithmetic number, because the mean of its divisors is an integer number (36094761).

Almost surely, 2^144112121 is an apocalyptic number.

It is an amenable number.

144112121 is a deficient number, since it is larger than the sum of its proper divisors (266923).

144112121 is an equidigital number, since it uses as much as digits as its factorization.

144112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266922.

The product of its digits is 64, while the sum is 17.

The square root of 144112121 is about 12004.6707993181. The cubic root of 144112121 is about 524.2842806546.

Adding to 144112121 its reverse (121211441), we get a palindrome (265323562).

The spelling of 144112121 in words is "one hundred forty-four million, one hundred twelve thousand, one hundred twenty-one".