1253540063 has 2 divisors, whose sum is σ = 1253540064. Its totient is φ = 1253540062.

The previous prime is 1253540059. The next prime is 1253540077. The reversal of 1253540063 is 3600453521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1253540063 - 2² = 1253540059 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1253540023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626770031 + 626770032.

It is an arithmetic number, because the mean of its divisors is an integer number (626770032).

Almost surely, 2^1253540063 is an apocalyptic number.

1253540063 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253540063 is an equidigital number, since it uses as much as digits as its factorization.

1253540063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 1253540063 is about 35405.3677145147. The cubic root of 1253540063 is about 1078.2332978131.

Adding to 1253540063 its reverse (3600453521), we get a palindrome (4853993584).

The spelling of 1253540063 in words is "one billion, two hundred fifty-three million, five hundred forty thousand, sixty-three".