142782089 has 2 divisors, whose sum is σ = 142782090. Its totient is φ = 142782088.

The previous prime is 142782037. The next prime is 142782113. The reversal of 142782089 is 980287241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80640400 + 62141689 = 8980^2 + 7883^2 .

It is a cyclic number.

It is not a de Polignac number, because 142782089 - 2¹² = 142777993 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (142782989) 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, 71391044 + 71391045.

It is an arithmetic number, because the mean of its divisors is an integer number (71391045).

Almost surely, 2^142782089 is an apocalyptic number.

It is an amenable number.

142782089 is a deficient number, since it is larger than the sum of its proper divisors (1).

142782089 is an equidigital number, since it uses as much as digits as its factorization.

142782089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 142782089 is about 11949.1459527449. The cubic root of 142782089 is about 522.6663942016. Note that the first 3 decimals are identical.

The spelling of 142782089 in words is "one hundred forty-two million, seven hundred eighty-two thousand, eighty-nine".