159440243 has 12 divisors (see below), whose sum is σ = 163764168. Its totient is φ = 155221920.

The previous prime is 159440213. The next prime is 159440257. The reversal of 159440243 is 342044951.

159440243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 159440243 - 2⁶ = 159440179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159440213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 567263 + ... + 567543.

It is an arithmetic number, because the mean of its divisors is an integer number (13647014).

Almost surely, 2^159440243 is an apocalyptic number.

159440243 is a deficient number, since it is larger than the sum of its proper divisors (4323925).

159440243 is an equidigital number, since it uses as much as digits as its factorization.

159440243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562 (or 503 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 159440243 is about 12626.9649164001. The cubic root of 159440243 is about 542.2496943213.

The spelling of 159440243 in words is "one hundred fifty-nine million, four hundred forty thousand, two hundred forty-three".