1310525609 has 2 divisors, whose sum is σ = 1310525610. Its totient is φ = 1310525608.

The previous prime is 1310525543. The next prime is 1310525633. The reversal of 1310525609 is 9065250131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1307184025 + 3341584 = 36155^2 + 1828^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310525609 - 2²⁰ = 1309477033 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1310525659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655262804 + 655262805.

It is an arithmetic number, because the mean of its divisors is an integer number (655262805).

Almost surely, 2^1310525609 is an apocalyptic number.

It is an amenable number.

1310525609 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310525609 is an equidigital number, since it uses as much as digits as its factorization.

1310525609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 1310525609 is about 36201.1824254402. The cubic root of 1310525609 is about 1094.3305009954.

The spelling of 1310525609 in words is "one billion, three hundred ten million, five hundred twenty-five thousand, six hundred nine".