144421523 has 2 divisors, whose sum is σ = 144421524. Its totient is φ = 144421522.

The previous prime is 144421517. The next prime is 144421547. The reversal of 144421523 is 325124441.

144421523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (325124441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144421523 - 2⁴ = 144421507 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144421492 and 144421501.

It is not a weakly prime, because it can be changed into another prime (144423523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72210761 + 72210762.

It is an arithmetic number, because the mean of its divisors is an integer number (72210762).

Almost surely, 2^144421523 is an apocalyptic number.

144421523 is a deficient number, since it is larger than the sum of its proper divisors (1).

144421523 is an equidigital number, since it uses as much as digits as its factorization.

144421523 is an evil number, because the sum of its binary digits is even.

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

The square root of 144421523 is about 12017.5506239832. The cubic root of 144421523 is about 524.6592170886.

Adding to 144421523 its reverse (325124441), we get a palindrome (469545964).

The spelling of 144421523 in words is "one hundred forty-four million, four hundred twenty-one thousand, five hundred twenty-three".