159485917 has 4 divisors (see below), whose sum is σ = 164630656. Its totient is φ = 154341180.

The previous prime is 159485863. The next prime is 159485923. The reversal of 159485917 is 719584951.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 719584951 = 107 ⋅6725093.

It is a cyclic number.

It is not a de Polignac number, because 159485917 - 2¹⁹ = 158961629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159485987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2572323 + ... + 2572384.

It is an arithmetic number, because the mean of its divisors is an integer number (41157664).

Almost surely, 2^159485917 is an apocalyptic number.

It is an amenable number.

159485917 is a deficient number, since it is larger than the sum of its proper divisors (5144739).

159485917 is an equidigital number, since it uses as much as digits as its factorization.

159485917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5144738.

The product of its digits is 453600, while the sum is 49.

The square root of 159485917 is about 12628.7733766982. The cubic root of 159485917 is about 542.3014678416.

The spelling of 159485917 in words is "one hundred fifty-nine million, four hundred eighty-five thousand, nine hundred seventeen".