144427 has 2 divisors, whose sum is σ = 144428. Its totient is φ = 144426.

The previous prime is 144413. The next prime is 144439. The reversal of 144427 is 724441.

It is a strong prime.

It is an emirp because it is prime and its reverse (724441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144427 - 2⁷ = 144299 is a prime.

144427 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 144398 and 144407.

It is not a weakly prime, because it can be changed into another prime (144407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72213 + 72214.

It is an arithmetic number, because the mean of its divisors is an integer number (72214).

2¹⁴⁴⁴²⁷ is an apocalyptic number.

144427 is a deficient number, since it is larger than the sum of its proper divisors (1).

144427 is an equidigital number, since it uses as much as digits as its factorization.

144427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 896, while the sum is 22.

The square root of 144427 is about 380.0355246553. The cubic root of 144427 is about 52.4665849346.

Adding to 144427 its reverse (724441), we get a palindrome (868868).

The spelling of 144427 in words is "one hundred forty-four thousand, four hundred twenty-seven", and thus it is an iban number.