142828589 has 2 divisors, whose sum is σ = 142828590. Its totient is φ = 142828588.

The previous prime is 142828571. The next prime is 142828613. The reversal of 142828589 is 985828241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95452900 + 47375689 = 9770^2 + 6883^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142828589 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142828519) 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, 71414294 + 71414295.

It is an arithmetic number, because the mean of its divisors is an integer number (71414295).

Almost surely, 2^142828589 is an apocalyptic number.

It is an amenable number.

142828589 is a deficient number, since it is larger than the sum of its proper divisors (1).

142828589 is an equidigital number, since it uses as much as digits as its factorization.

142828589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 368640, while the sum is 47.

The square root of 142828589 is about 11951.0915401063. The cubic root of 142828589 is about 522.7231271564.

The spelling of 142828589 in words is "one hundred forty-two million, eight hundred twenty-eight thousand, five hundred eighty-nine".