1245053440427 has 2 divisors, whose sum is σ = 1245053440428. Its totient is φ = 1245053440426.

The previous prime is 1245053440399. The next prime is 1245053440469. The reversal of 1245053440427 is 7240443505421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1245053440427 - 2²⁸ = 1244785004971 is a prime.

It is not a weakly prime, because it can be changed into another prime (1245053448427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622526720213 + 622526720214.

It is an arithmetic number, because the mean of its divisors is an integer number (622526720214).

Almost surely, 2^{1245053440427} is an apocalyptic number.

1245053440427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245053440427 is an equidigital number, since it uses as much as digits as its factorization.

1245053440427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 537600, while the sum is 41.

Adding to 1245053440427 its reverse (7240443505421), we get a palindrome (8485496945848).

The spelling of 1245053440427 in words is "one trillion, two hundred forty-five billion, fifty-three million, four hundred forty thousand, four hundred twenty-seven".