1223546339 has 2 divisors, whose sum is σ = 1223546340. Its totient is φ = 1223546338.

The previous prime is 1223546329. The next prime is 1223546353. The reversal of 1223546339 is 9336453221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1223546339 - 2²⁰ = 1222497763 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1223546309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611773169 + 611773170.

It is an arithmetic number, because the mean of its divisors is an integer number (611773170).

Almost surely, 2^1223546339 is an apocalyptic number.

1223546339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223546339 is an equidigital number, since it uses as much as digits as its factorization.

1223546339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 38.

The square root of 1223546339 is about 34979.2272498979. The cubic root of 1223546339 is about 1069.5640751988.

The spelling of 1223546339 in words is "one billion, two hundred twenty-three million, five hundred forty-six thousand, three hundred thirty-nine".