1228159 has 2 divisors, whose sum is σ = 1228160. Its totient is φ = 1228158.

The previous prime is 1228153. The next prime is 1228163. The reversal of 1228159 is 9518221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1228159 - 2¹¹ = 1226111 is a prime.

It is an Ulam number.

1228159 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1228153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614079 + 614080.

It is an arithmetic number, because the mean of its divisors is an integer number (614080).

2^1228159 is an apocalyptic number.

1228159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1228159 is an equidigital number, since it uses as much as digits as its factorization.

1228159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 28.

The square root of 1228159 is about 1108.2233529393. The cubic root of 1228159 is about 107.0906443588.

It can be divided in two parts, 122 and 8159, that added together give a square (8281 = 91²).

The spelling of 1228159 in words is "one million, two hundred twenty-eight thousand, one hundred fifty-nine".