144287771 has 2 divisors, whose sum is σ = 144287772. Its totient is φ = 144287770.

The previous prime is 144287743. The next prime is 144287777. The reversal of 144287771 is 177782441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 144287771 - 2²² = 140093467 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (144287777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72143885 + 72143886.

It is an arithmetic number, because the mean of its divisors is an integer number (72143886).

Almost surely, 2^144287771 is an apocalyptic number.

144287771 is a deficient number, since it is larger than the sum of its proper divisors (1).

144287771 is an equidigital number, since it uses as much as digits as its factorization.

144287771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87808, while the sum is 41.

The square root of 144287771 is about 12011.9844738494. The cubic root of 144287771 is about 524.4972008540.

The spelling of 144287771 in words is "one hundred forty-four million, two hundred eighty-seven thousand, seven hundred seventy-one".