159870993 has 8 divisors (see below), whose sum is σ = 213220800. Its totient is φ = 106550928.

The previous prime is 159870979. The next prime is 159871001. The reversal of 159870993 is 399078951.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 159870993 - 2⁶ = 159870929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (159870973) 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 in 7 ways as a sum of consecutive naturals, for example, 13668 + ... + 22506.

It is an arithmetic number, because the mean of its divisors is an integer number (26652600).

Almost surely, 2^159870993 is an apocalyptic number.

It is an amenable number.

159870993 is a deficient number, since it is larger than the sum of its proper divisors (53349807).

159870993 is an equidigital number, since it uses as much as digits as its factorization.

159870993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14871.

The product of its (nonzero) digits is 612360, while the sum is 51.

The square root of 159870993 is about 12644.0101629190. The cubic root of 159870993 is about 542.7375762226.

The spelling of 159870993 in words is "one hundred fifty-nine million, eight hundred seventy thousand, nine hundred ninety-three".