1223312159 has 2 divisors, whose sum is σ = 1223312160. Its totient is φ = 1223312158.

The previous prime is 1223312147. The next prime is 1223312213. The reversal of 1223312159 is 9512133221.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (9512133221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1223312159 - 2⁴ = 1223312143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223312119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611656079 + 611656080.

It is an arithmetic number, because the mean of its divisors is an integer number (611656080).

Almost surely, 2^1223312159 is an apocalyptic number.

1223312159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223312159 is an equidigital number, since it uses as much as digits as its factorization.

1223312159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 29.

The square root of 1223312159 is about 34975.8796744271. The cubic root of 1223312159 is about 1069.4958346294.

The spelling of 1223312159 in words is "one billion, two hundred twenty-three million, three hundred twelve thousand, one hundred fifty-nine".