1205249845907 has 2 divisors, whose sum is σ = 1205249845908. Its totient is φ = 1205249845906.

The previous prime is 1205249845889. The next prime is 1205249845913. The reversal of 1205249845907 is 7095489425021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1205249845907 - 2²⁰ = 1205248797331 is a prime.

It is not a weakly prime, because it can be changed into another prime (1205239845907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602624922953 + 602624922954.

It is an arithmetic number, because the mean of its divisors is an integer number (602624922954).

Almost surely, 2^{1205249845907} is an apocalyptic number.

1205249845907 is a deficient number, since it is larger than the sum of its proper divisors (1).

1205249845907 is an equidigital number, since it uses as much as digits as its factorization.

1205249845907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7257600, while the sum is 56.

The spelling of 1205249845907 in words is "one trillion, two hundred five billion, two hundred forty-nine million, eight hundred forty-five thousand, nine hundred seven".