1205249714897 has 2 divisors, whose sum is σ = 1205249714898. Its totient is φ = 1205249714896.

The previous prime is 1205249714881. The next prime is 1205249714909. The reversal of 1205249714897 is 7984179425021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1068378573376 + 136871141521 = 1033624^2 + 369961^2 .

It is a cyclic number.

It is not a de Polignac number, because 1205249714897 - 2⁴ = 1205249714881 is a prime.

It is not a weakly prime, because it can be changed into another prime (1205249714497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602624857448 + 602624857449.

It is an arithmetic number, because the mean of its divisors is an integer number (602624857449).

Almost surely, 2^{1205249714897} is an apocalyptic number.

It is an amenable number.

1205249714897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1205249714897 is an equidigital number, since it uses as much as digits as its factorization.

1205249714897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10160640, while the sum is 59.

The spelling of 1205249714897 in words is "one trillion, two hundred five billion, two hundred forty-nine million, seven hundred fourteen thousand, eight hundred ninety-seven".