159083986 has 4 divisors (see below), whose sum is σ = 238625982. Its totient is φ = 79541992.

The previous prime is 159083927. The next prime is 159083993. The reversal of 159083986 is 689380951.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 150528361 + 8555625 = 12269^2 + 2925^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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, 39770995 + ... + 39770998.

Almost surely, 2^159083986 is an apocalyptic number.

159083986 is a deficient number, since it is larger than the sum of its proper divisors (79541996).

159083986 is an equidigital number, since it uses as much as digits as its factorization.

159083986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79541995.

The product of its (nonzero) digits is 466560, while the sum is 49.

The square root of 159083986 is about 12612.8500347860. The cubic root of 159083986 is about 541.8455213498.

The spelling of 159083986 in words is "one hundred fifty-nine million, eighty-three thousand, nine hundred eighty-six".