159441 has 4 divisors (see below), whose sum is σ = 212592.
Its totient is φ = 106292.
The previous prime is 159437. The next prime is 159457. The reversal of 159441 is 144951.
159441 = T124 + T125 + ... +
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 159441 - 22 = 159437 is a prime.
It is a D-number.
It is a Curzon number.
It is a nialpdrome in base 11.
It is not an unprimeable number, because it can be changed into a prime (159421) 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, 26571 + ... + 26576.
It is an arithmetic number, because the mean of its divisors is an integer number (53148).
2159441 is an apocalyptic number.
It is an amenable number.
159441 is a deficient number, since it is larger than the sum of its proper divisors (53151).
159441 is an equidigital number, since it uses as much as digits as its factorization.
159441 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 53150.
The product of its digits is 720, while the sum is 24.
The square root of 159441 is about 399.3006386171.
The cubic root of 159441 is about 54.2250552495.
The spelling of 159441 in words is "one hundred fifty-nine thousand, four hundred forty-one".