1228094159 has 4 divisors (see below), whose sum is σ = 1230892080. Its totient is φ = 1225296240.

The previous prime is 1228094129. The next prime is 1228094213. The reversal of 1228094159 is 9514908221.

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 1228094159 - 2¹² = 1228090063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228094129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1398302 + ... + 1399179.

It is an arithmetic number, because the mean of its divisors is an integer number (307723020).

Almost surely, 2^1228094159 is an apocalyptic number.

1228094159 is a deficient number, since it is larger than the sum of its proper divisors (2797921).

1228094159 is an equidigital number, since it uses as much as digits as its factorization.

1228094159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2797920.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 1228094159 is about 35044.1743946123. The cubic root of 1228094159 is about 1070.8875969871.

The spelling of 1228094159 in words is "one billion, two hundred twenty-eight million, ninety-four thousand, one hundred fifty-nine".