159998983 has 2 divisors, whose sum is σ = 159998984. Its totient is φ = 159998982.

The previous prime is 159998959. The next prime is 159998999. The reversal of 159998983 is 389899951.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159998983 is a prime.

It is a super-2 number, since 2×159998983² = 51199349122068578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159998903) 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, 79999491 + 79999492.

It is an arithmetic number, because the mean of its divisors is an integer number (79999492).

Almost surely, 2^159998983 is an apocalyptic number.

159998983 is a deficient number, since it is larger than the sum of its proper divisors (1).

159998983 is an equidigital number, since it uses as much as digits as its factorization.

159998983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6298560, while the sum is 61.

The square root of 159998983 is about 12649.0704401549. The cubic root of 159998983 is about 542.8823730821.

The spelling of 159998983 in words is "one hundred fifty-nine million, nine hundred ninety-eight thousand, nine hundred eighty-three".