1310971585 has 16 divisors (see below), whose sum is σ = 1961350272. Its totient is φ = 817228800.

The previous prime is 1310971579. The next prime is 1310971601. The reversal of 1310971585 is 5851790131.

It is not a de Polignac number, because 1310971585 - 2³ = 1310971577 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1702176 + ... + 1702945.

It is an arithmetic number, because the mean of its divisors is an integer number (122584392).

Almost surely, 2^1310971585 is an apocalyptic number.

It is an amenable number.

1310971585 is a deficient number, since it is larger than the sum of its proper divisors (650378687).

1310971585 is a wasteful number, since it uses less digits than its factorization.

1310971585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3405144.

The product of its (nonzero) digits is 37800, while the sum is 40.

The square root of 1310971585 is about 36207.3415897936. The cubic root of 1310971585 is about 1094.4546216245.

The spelling of 1310971585 in words is "one billion, three hundred ten million, nine hundred seventy-one thousand, five hundred eighty-five".