1223260079 has 2 divisors, whose sum is σ = 1223260080. Its totient is φ = 1223260078.

The previous prime is 1223260043. The next prime is 1223260081. The reversal of 1223260079 is 9700623221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223260079 is a prime.

Together with 1223260081, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223260099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611630039 + 611630040.

It is an arithmetic number, because the mean of its divisors is an integer number (611630040).

Almost surely, 2^1223260079 is an apocalyptic number.

1223260079 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223260079 is an equidigital number, since it uses as much as digits as its factorization.

1223260079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 1223260079 is about 34975.1351534201. The cubic root of 1223260079 is about 1069.4806572186.

The spelling of 1223260079 in words is "one billion, two hundred twenty-three million, two hundred sixty thousand, seventy-nine".