1315664503 has 4 divisors (see below), whose sum is σ = 1315921248. Its totient is φ = 1315407760.

The previous prime is 1315664491. The next prime is 1315664509. The reversal of 1315664503 is 3054665131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1315664503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315664509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120526 + ... + 130987.

It is an arithmetic number, because the mean of its divisors is an integer number (328980312).

Almost surely, 2^1315664503 is an apocalyptic number.

1315664503 is a deficient number, since it is larger than the sum of its proper divisors (256745).

1315664503 is an equidigital number, since it uses as much as digits as its factorization.

1315664503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256744.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 1315664503 is about 36272.0898625927. The cubic root of 1315664503 is about 1095.7590153278.

The spelling of 1315664503 in words is "one billion, three hundred fifteen million, six hundred sixty-four thousand, five hundred three".