1980517159 has 2 divisors, whose sum is σ = 1980517160. Its totient is φ = 1980517158.

The previous prime is 1980517109. The next prime is 1980517219. The reversal of 1980517159 is 9517150891.

It is a weak prime.

It is an emirp because it is prime and its reverse (9517150891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1980517159 - 2¹³ = 1980508967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1980517109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 990258579 + 990258580.

It is an arithmetic number, because the mean of its divisors is an integer number (990258580).

Almost surely, 2^1980517159 is an apocalyptic number.

1980517159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1980517159 is an equidigital number, since it uses as much as digits as its factorization.

1980517159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 113400, while the sum is 46.

The square root of 1980517159 is about 44503.0016852796. The cubic root of 1980517159 is about 1255.8165527764.

The spelling of 1980517159 in words is "one billion, nine hundred eighty million, five hundred seventeen thousand, one hundred fifty-nine".