144722671 has 2 divisors, whose sum is σ = 144722672. Its totient is φ = 144722670.

The previous prime is 144722659. The next prime is 144722689. The reversal of 144722671 is 176227441.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144722671 - 2⁹ = 144722159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144722621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72361335 + 72361336.

It is an arithmetic number, because the mean of its divisors is an integer number (72361336).

Almost surely, 2^144722671 is an apocalyptic number.

144722671 is a deficient number, since it is larger than the sum of its proper divisors (1).

144722671 is an equidigital number, since it uses as much as digits as its factorization.

144722671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18816, while the sum is 34.

The square root of 144722671 is about 12030.0736074224. The cubic root of 144722671 is about 525.0236373333.

The spelling of 144722671 in words is "one hundred forty-four million, seven hundred twenty-two thousand, six hundred seventy-one".