144715717 has 2 divisors, whose sum is σ = 144715718. Its totient is φ = 144715716.

The previous prime is 144715709. The next prime is 144715733. The reversal of 144715717 is 717517441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140517316 + 4198401 = 11854^2 + 2049^2 .

It is a cyclic number.

It is not a de Polignac number, because 144715717 - 2³ = 144715709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144715777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72357858 + 72357859.

It is an arithmetic number, because the mean of its divisors is an integer number (72357859).

Almost surely, 2^144715717 is an apocalyptic number.

It is an amenable number.

144715717 is a deficient number, since it is larger than the sum of its proper divisors (1).

144715717 is an equidigital number, since it uses as much as digits as its factorization.

144715717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27440, while the sum is 37.

The square root of 144715717 is about 12029.7845782873. The cubic root of 144715717 is about 525.0152279786.

The spelling of 144715717 in words is "one hundred forty-four million, seven hundred fifteen thousand, seven hundred seventeen".