144322121 has 4 divisors (see below), whose sum is σ = 144586512. Its totient is φ = 144057732.

The previous prime is 144322099. The next prime is 144322153. The reversal of 144322121 is 121223441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121223441 = 10453 ⋅11597.

It is a cyclic number.

It is not a de Polignac number, because 144322121 - 2¹⁴ = 144305737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 144322093 and 144322102.

It is not an unprimeable number, because it can be changed into a prime (144322621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131375 + ... + 132468.

It is an arithmetic number, because the mean of its divisors is an integer number (36146628).

Almost surely, 2^144322121 is an apocalyptic number.

It is an amenable number.

144322121 is a deficient number, since it is larger than the sum of its proper divisors (264391).

144322121 is an equidigital number, since it uses as much as digits as its factorization.

144322121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264390.

The product of its digits is 384, while the sum is 20.

The square root of 144322121 is about 12013.4142107895. The cubic root of 144322121 is about 524.5388191866.

Adding to 144322121 its reverse (121223441), we get a palindrome (265545562).

The spelling of 144322121 in words is "one hundred forty-four million, three hundred twenty-two thousand, one hundred twenty-one".