144325421 has 4 divisors (see below), whose sum is σ = 144559200. Its totient is φ = 144091644.

The previous prime is 144325411. The next prime is 144325457. The reversal of 144325421 is 124523441.

144325421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 124523441 = 7 ⋅17789063.

It is a cyclic number.

It is not a de Polignac number, because 144325421 - 2¹⁴ = 144309037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144325411) 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, 115961 + ... + 117198.

It is an arithmetic number, because the mean of its divisors is an integer number (36139800).

Almost surely, 2^144325421 is an apocalyptic number.

It is an amenable number.

144325421 is a deficient number, since it is larger than the sum of its proper divisors (233779).

144325421 is an equidigital number, since it uses as much as digits as its factorization.

144325421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233778.

The product of its digits is 3840, while the sum is 26.

The square root of 144325421 is about 12013.5515564715. The cubic root of 144325421 is about 524.5428171066.

Adding to 144325421 its reverse (124523441), we get a palindrome (268848862).

The spelling of 144325421 in words is "one hundred forty-four million, three hundred twenty-five thousand, four hundred twenty-one".