1306864503 has 32 divisors (see below), whose sum is σ = 2216901120. Its totient is φ = 745355520.

The previous prime is 1306864499. The next prime is 1306864529. The reversal of 1306864503 is 3054686031.

1306864503 is a `hidden beast` number, since 1 + 3 + 0 + 6 + 8 + 645 + 0 + 3 = 666.

It is not a de Polignac number, because 1306864503 - 2² = 1306864499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306864543) 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 31 ways as a sum of consecutive naturals, for example, 97063 + ... + 109703.

It is an arithmetic number, because the mean of its divisors is an integer number (69278160).

Almost surely, 2^1306864503 is an apocalyptic number.

1306864503 is a deficient number, since it is larger than the sum of its proper divisors (910036617).

1306864503 is a wasteful number, since it uses less digits than its factorization.

1306864503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13204 (or 13198 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 1306864503 is about 36150.5809496888. The cubic root of 1306864503 is about 1093.3105039870.

The spelling of 1306864503 in words is "one billion, three hundred six million, eight hundred sixty-four thousand, five hundred three".