1310571505 has 4 divisors (see below), whose sum is σ = 1572685812. Its totient is φ = 1048457200.

The previous prime is 1310571481. The next prime is 1310571511. The reversal of 1310571505 is 5051750131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5051750131 = 49477 ⋅102103.

It can be written as a sum of positive squares in 2 ways, for example, as 652700304 + 657871201 = 25548^2 + 25649^2 .

It is not a de Polignac number, because 1310571505 - 2⁹ = 1310570993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 131057146 + ... + 131057155.

It is an arithmetic number, because the mean of its divisors is an integer number (393171453).

Almost surely, 2^1310571505 is an apocalyptic number.

It is an amenable number.

1310571505 is a deficient number, since it is larger than the sum of its proper divisors (262114307).

1310571505 is an equidigital number, since it uses as much as digits as its factorization.

1310571505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262114306.

The product of its (nonzero) digits is 2625, while the sum is 28.

The square root of 1310571505 is about 36201.8163218367. The cubic root of 1310571505 is about 1094.3432757188.

The spelling of 1310571505 in words is "one billion, three hundred ten million, five hundred seventy-one thousand, five hundred five".