159641843 has 4 divisors (see below), whose sum is σ = 163354488. Its totient is φ = 155929200.

The previous prime is 159641837. The next prime is 159641851. The reversal of 159641843 is 348146951.

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 159641843 - 2¹⁸ = 159379699 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 159641843.

It is not an unprimeable number, because it can be changed into a prime (159641803) 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, 1856258 + ... + 1856343.

It is an arithmetic number, because the mean of its divisors is an integer number (40838622).

Almost surely, 2^159641843 is an apocalyptic number.

159641843 is a deficient number, since it is larger than the sum of its proper divisors (3712645).

159641843 is an equidigital number, since it uses as much as digits as its factorization.

159641843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3712644.

The product of its digits is 103680, while the sum is 41.

The square root of 159641843 is about 12634.9453105267. The cubic root of 159641843 is about 542.4781424933.

The spelling of 159641843 in words is "one hundred fifty-nine million, six hundred forty-one thousand, eight hundred forty-three".