1982305159 has 2 divisors, whose sum is σ = 1982305160. Its totient is φ = 1982305158.

The previous prime is 1982305147. The next prime is 1982305183. The reversal of 1982305159 is 9515032891.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1982305159 - 2¹¹ = 1982303111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1982305189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991152579 + 991152580.

It is an arithmetic number, because the mean of its divisors is an integer number (991152580).

Almost surely, 2^1982305159 is an apocalyptic number.

1982305159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1982305159 is an equidigital number, since it uses as much as digits as its factorization.

1982305159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 43.

The square root of 1982305159 is about 44523.0856859675. The cubic root of 1982305159 is about 1256.1943538663.

It can be divided in two parts, 1982305 and 159, that added together give a square (1982464 = 1408²).

The spelling of 1982305159 in words is "one billion, nine hundred eighty-two million, three hundred five thousand, one hundred fifty-nine".