1353245500561 has 2 divisors, whose sum is σ = 1353245500562. Its totient is φ = 1353245500560.

The previous prime is 1353245500513. The next prime is 1353245500583. The reversal of 1353245500561 is 1650055423531.

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., 1138094244225 + 215151256336 = 1066815^2 + 463844^2 .

It is a cyclic number.

It is not a de Polignac number, because 1353245500561 - 2³⁷ = 1215806547089 is a prime.

It is not a weakly prime, because it can be changed into another prime (1353245500501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 676622750280 + 676622750281.

It is an arithmetic number, because the mean of its divisors is an integer number (676622750281).

Almost surely, 2^{1353245500561} is an apocalyptic number.

It is an amenable number.

1353245500561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1353245500561 is an equidigital number, since it uses as much as digits as its factorization.

1353245500561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270000, while the sum is 40.

The spelling of 1353245500561 in words is "one trillion, three hundred fifty-three billion, two hundred forty-five million, five hundred thousand, five hundred sixty-one".