159223 has 2 divisors, whose sum is σ = 159224. Its totient is φ = 159222.
The previous prime is 159209. The next prime is 159227. The reversal of 159223 is 322951.
159223 is nontrivially palindromic in base 12.
It is a strong prime.
It is an emirp because it is prime and its reverse (322951) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 159223 - 25 = 159191 is a prime.
It is an Ulam number.
It is a junction number, because it is equal to n+sod(n) for n = 159194 and 159203.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (159227) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79611 + 79612.
It is an arithmetic number, because the mean of its divisors is an integer number (79612).
2159223 is an apocalyptic number.
159223 is a deficient number, since it is larger than the sum of its proper divisors (1).
159223 is an equidigital number, since it uses as much as digits as its factorization.
159223 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 540, while the sum is 22.
The square root of 159223 is about 399.0275679699. The cubic root of 159223 is about 54.2003304220.
Subtracting from 159223 its sum of digits (22), we obtain a square (159201 = 3992).
The spelling of 159223 in words is "one hundred fifty-nine thousand, two hundred twenty-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.000 sec. • engine limits •