142871717 has 2 divisors, whose sum is σ = 142871718. Its totient is φ = 142871716.

The previous prime is 142871711. The next prime is 142871749. The reversal of 142871717 is 717178241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125574436 + 17297281 = 11206^2 + 4159^2 .

It is a cyclic number.

It is not a de Polignac number, because 142871717 - 2⁸ = 142871461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142871711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71435858 + 71435859.

It is an arithmetic number, because the mean of its divisors is an integer number (71435859).

Almost surely, 2^142871717 is an apocalyptic number.

It is an amenable number.

142871717 is a deficient number, since it is larger than the sum of its proper divisors (1).

142871717 is an equidigital number, since it uses as much as digits as its factorization.

142871717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21952, while the sum is 38.

The square root of 142871717 is about 11952.8957579325. The cubic root of 142871717 is about 522.7757350516.

The spelling of 142871717 in words is "one hundred forty-two million, eight hundred seventy-one thousand, seven hundred seventeen".