142307717 has 2 divisors, whose sum is σ = 142307718. Its totient is φ = 142307716.

The previous prime is 142307689. The next prime is 142307719. The reversal of 142307717 is 717703241.

142307717 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 can be written as a sum of positive squares in only one way, i.e., 127554436 + 14753281 = 11294^2 + 3841^2 .

It is a cyclic number.

It is not a de Polignac number, because 142307717 - 2⁶ = 142307653 is a prime.

Together with 142307719, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142307719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71153858 + 71153859.

It is an arithmetic number, because the mean of its divisors is an integer number (71153859).

Almost surely, 2^142307717 is an apocalyptic number.

It is an amenable number.

142307717 is a deficient number, since it is larger than the sum of its proper divisors (1).

142307717 is an equidigital number, since it uses as much as digits as its factorization.

142307717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 142307717 is about 11929.2798190000. The cubic root of 142307717 is about 522.0869251854.

The spelling of 142307717 in words is "one hundred forty-two million, three hundred seven thousand, seven hundred seventeen".