1309325863 has 2 divisors, whose sum is σ = 1309325864. Its totient is φ = 1309325862.

The previous prime is 1309325813. The next prime is 1309325867. The reversal of 1309325863 is 3685239031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1309325863 - 2²⁹ = 772454951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1309325867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 654662931 + 654662932.

It is an arithmetic number, because the mean of its divisors is an integer number (654662932).

Almost surely, 2^1309325863 is an apocalyptic number.

1309325863 is a deficient number, since it is larger than the sum of its proper divisors (1).

1309325863 is an equidigital number, since it uses as much as digits as its factorization.

1309325863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 1309325863 is about 36184.6080951556. The cubic root of 1309325863 is about 1093.9964570358.

The spelling of 1309325863 in words is "one billion, three hundred nine million, three hundred twenty-five thousand, eight hundred sixty-three".