142895317 has 2 divisors, whose sum is σ = 142895318. Its totient is φ = 142895316.

The previous prime is 142895303. The next prime is 142895351. The reversal of 142895317 is 713598241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113018161 + 29877156 = 10631^2 + 5466^2 .

It is a cyclic number.

It is not a de Polignac number, because 142895317 - 2¹¹ = 142893269 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142895317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142845317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71447658 + 71447659.

It is an arithmetic number, because the mean of its divisors is an integer number (71447659).

Almost surely, 2^142895317 is an apocalyptic number.

It is an amenable number.

142895317 is a deficient number, since it is larger than the sum of its proper divisors (1).

142895317 is an equidigital number, since it uses as much as digits as its factorization.

142895317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 40.

The square root of 142895317 is about 11953.8829256439. The cubic root of 142895317 is about 522.8045180474.

The spelling of 142895317 in words is "one hundred forty-two million, eight hundred ninety-five thousand, three hundred seventeen".