1245458545439 has 2 divisors, whose sum is σ = 1245458545440. Its totient is φ = 1245458545438.

The previous prime is 1245458545393. The next prime is 1245458545447. The reversal of 1245458545439 is 9345458545421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1245458545439 - 2²⁴ = 1245441768223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1245458547439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622729272719 + 622729272720.

It is an arithmetic number, because the mean of its divisors is an integer number (622729272720).

Almost surely, 2^{1245458545439} is an apocalyptic number.

1245458545439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245458545439 is an equidigital number, since it uses as much as digits as its factorization.

1245458545439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120000, while the sum is 59.

The spelling of 1245458545439 in words is "one trillion, two hundred forty-five billion, four hundred fifty-eight million, five hundred forty-five thousand, four hundred thirty-nine".