1245504803 has 2 divisors, whose sum is σ = 1245504804. Its totient is φ = 1245504802.

The previous prime is 1245504781. The next prime is 1245504829. The reversal of 1245504803 is 3084055421.

It is a weak prime.

It is an emirp because it is prime and its reverse (3084055421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1245504803 - 2³⁰ = 171762979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1245504803.

It is not a weakly prime, because it can be changed into another prime (1245504863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622752401 + 622752402.

It is an arithmetic number, because the mean of its divisors is an integer number (622752402).

Almost surely, 2^1245504803 is an apocalyptic number.

1245504803 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245504803 is an equidigital number, since it uses as much as digits as its factorization.

1245504803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 1245504803 is about 35291.7101172499. The cubic root of 1245504803 is about 1075.9245129185.

The spelling of 1245504803 in words is "one billion, two hundred forty-five million, five hundred four thousand, eight hundred three".