159570987 has 32 divisors (see below), whose sum is σ = 237772800. Its totient is φ = 94720032.

The previous prime is 159570977. The next prime is 159570989. The reversal of 159570987 is 789075951.

It is not a de Polignac number, because 159570987 - 2⁶ = 159570923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (159570989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76318 + ... + 78380.

It is an arithmetic number, because the mean of its divisors is an integer number (7430400).

Almost surely, 2^159570987 is an apocalyptic number.

159570987 is a deficient number, since it is larger than the sum of its proper divisors (78201813).

159570987 is a wasteful number, since it uses less digits than its factorization.

159570987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2167.

The product of its (nonzero) digits is 793800, while the sum is 51.

The square root of 159570987 is about 12632.1410299284. The cubic root of 159570987 is about 542.3978721440.

The spelling of 159570987 in words is "one hundred fifty-nine million, five hundred seventy thousand, nine hundred eighty-seven".