144219727 has 2 divisors, whose sum is σ = 144219728. Its totient is φ = 144219726.

The previous prime is 144219631. The next prime is 144219737. The reversal of 144219727 is 727912441.

144219727 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144219727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144219737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72109863 + 72109864.

It is an arithmetic number, because the mean of its divisors is an integer number (72109864).

Almost surely, 2^144219727 is an apocalyptic number.

144219727 is a deficient number, since it is larger than the sum of its proper divisors (1).

144219727 is an equidigital number, since it uses as much as digits as its factorization.

144219727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 37.

The square root of 144219727 is about 12009.1518018551. The cubic root of 144219727 is about 524.4147394902.

The spelling of 144219727 in words is "one hundred forty-four million, two hundred nineteen thousand, seven hundred twenty-seven".