159243845 has 32 divisors (see below), whose sum is σ = 214721280. Its totient is φ = 112665600.

The previous prime is 159243839. The next prime is 159243857. The reversal of 159243845 is 548342951.

It is not a de Polignac number, because 159243845 - 2⁸ = 159243589 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 243539 + ... + 244191.

It is an arithmetic number, because the mean of its divisors is an integer number (6710040).

Almost surely, 2^159243845 is an apocalyptic number.

It is an amenable number.

159243845 is a deficient number, since it is larger than the sum of its proper divisors (55477435).

159243845 is a wasteful number, since it uses less digits than its factorization.

159243845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845.

The product of its digits is 172800, while the sum is 41.

The square root of 159243845 is about 12619.1855917884. The cubic root of 159243845 is about 542.0269556725.

The spelling of 159243845 in words is "one hundred fifty-nine million, two hundred forty-three thousand, eight hundred forty-five".