159340243 has 2 divisors, whose sum is σ = 159340244. Its totient is φ = 159340242.

The previous prime is 159340231. The next prime is 159340249. The reversal of 159340243 is 342043951.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 159340243 - 2¹³ = 159332051 is a prime.

It is not a weakly prime, because it can be changed into another prime (159340249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79670121 + 79670122.

It is an arithmetic number, because the mean of its divisors is an integer number (79670122).

Almost surely, 2^159340243 is an apocalyptic number.

159340243 is a deficient number, since it is larger than the sum of its proper divisors (1).

159340243 is an equidigital number, since it uses as much as digits as its factorization.

159340243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 159340243 is about 12623.0045155660. The cubic root of 159340243 is about 542.1363053197.

The spelling of 159340243 in words is "one hundred fifty-nine million, three hundred forty thousand, two hundred forty-three".