144327121 has 4 divisors (see below), whose sum is σ = 148227892. Its totient is φ = 140426352.

The previous prime is 144327107. The next prime is 144327133. The reversal of 144327121 is 121723441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121723441 = 7 ⋅17389063.

It can be written as a sum of positive squares in 2 ways, for example, as 79299025 + 65028096 = 8905^2 + 8064^2 .

It is a cyclic number.

It is not a de Polignac number, because 144327121 - 2⁷ = 144326993 is a prime.

It is a super-2 number, since 2×144327121² = 41660635712297282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144327151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1950330 + ... + 1950403.

It is an arithmetic number, because the mean of its divisors is an integer number (37056973).

Almost surely, 2^144327121 is an apocalyptic number.

It is an amenable number.

144327121 is a deficient number, since it is larger than the sum of its proper divisors (3900771).

144327121 is an equidigital number, since it uses as much as digits as its factorization.

144327121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3900770.

The product of its digits is 1344, while the sum is 25.

The square root of 144327121 is about 12013.6223096949. The cubic root of 144327121 is about 524.5448766174.

The spelling of 144327121 in words is "one hundred forty-four million, three hundred twenty-seven thousand, one hundred twenty-one".