1200554304449 has 2 divisors, whose sum is σ = 1200554304450. Its totient is φ = 1200554304448.

The previous prime is 1200554304431. The next prime is 1200554304491. The reversal of 1200554304449 is 9444034550021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 820935663025 + 379618641424 = 906055^2 + 616132^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200554304449 - 2¹² = 1200554300353 is a prime.

It is not a weakly prime, because it can be changed into another prime (1200554394449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600277152224 + 600277152225.

It is an arithmetic number, because the mean of its divisors is an integer number (600277152225).

Almost surely, 2^{1200554304449} is an apocalyptic number.

It is an amenable number.

1200554304449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200554304449 is an equidigital number, since it uses as much as digits as its factorization.

1200554304449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 1200554304449 in words is "one trillion, two hundred billion, five hundred fifty-four million, three hundred four thousand, four hundred forty-nine".