1315544803 has 2 divisors, whose sum is σ = 1315544804. Its totient is φ = 1315544802.

The previous prime is 1315544717. The next prime is 1315544807. The reversal of 1315544803 is 3084455131.

It is a strong prime.

It is an emirp because it is prime and its reverse (3084455131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1315544803 is a prime.

It is not a weakly prime, because it can be changed into another prime (1315544807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657772401 + 657772402.

It is an arithmetic number, because the mean of its divisors is an integer number (657772402).

Almost surely, 2^1315544803 is an apocalyptic number.

1315544803 is a deficient number, since it is larger than the sum of its proper divisors (1).

1315544803 is an equidigital number, since it uses as much as digits as its factorization.

1315544803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 1315544803 is about 36270.4397960653. The cubic root of 1315544803 is about 1095.7257833674.

Adding to 1315544803 its reverse (3084455131), we get a palindrome (4399999934).

The spelling of 1315544803 in words is "one billion, three hundred fifteen million, five hundred forty-four thousand, eight hundred three".