159974291 has 4 divisors (see below), whose sum is σ = 165134784. Its totient is φ = 154813800.

The previous prime is 159974279. The next prime is 159974293. The reversal of 159974291 is 192479951.

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

It is a cyclic number.

It is not a de Polignac number, because 159974291 - 2²⁶ = 92865427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159974293) 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 3 ways as a sum of consecutive naturals, for example, 2580200 + ... + 2580261.

It is an arithmetic number, because the mean of its divisors is an integer number (41283696).

Almost surely, 2^159974291 is an apocalyptic number.

159974291 is a deficient number, since it is larger than the sum of its proper divisors (5160493).

159974291 is an equidigital number, since it uses as much as digits as its factorization.

159974291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5160492.

The product of its digits is 204120, while the sum is 47.

The square root of 159974291 is about 12648.0943623931. The cubic root of 159974291 is about 542.8544446938.

The spelling of 159974291 in words is "one hundred fifty-nine million, nine hundred seventy-four thousand, two hundred ninety-one".