159671873 has 4 divisors (see below), whose sum is σ = 160628160. Its totient is φ = 158715588.

The previous prime is 159671861. The next prime is 159671923. The reversal of 159671873 is 378176951.

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: 378176951 = 17 ⋅22245703.

It is a cyclic number.

It is not a de Polignac number, because 159671873 - 2²⁴ = 142894657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159671833) 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, 477893 + ... + 478226.

It is an arithmetic number, because the mean of its divisors is an integer number (40157040).

Almost surely, 2^159671873 is an apocalyptic number.

It is an amenable number.

159671873 is a deficient number, since it is larger than the sum of its proper divisors (956287).

159671873 is an equidigital number, since it uses as much as digits as its factorization.

159671873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956286.

The product of its digits is 317520, while the sum is 47.

The square root of 159671873 is about 12636.1336254410. The cubic root of 159671873 is about 542.5121552912.

The spelling of 159671873 in words is "one hundred fifty-nine million, six hundred seventy-one thousand, eight hundred seventy-three".